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This section provides an overview for current sensors as well as their applications and principles. Also, please take a look at the list of 88 current sensor manufacturers and their company rankings. Here are the top-ranked current sensor companies as of December, 2024: 1.Algodue Elettronica s.r.l., 2.Setra Systems, Inc., 3.Time Mark Corp..
Table of Contents
A current sensor is a device that measures the current flowing in a circuit.
Current sensors are built into current circuits, so they require the circuit to be disconnected and can be dangerous, but there are also types of current sensors that can measure current by simply clamping a portion of the circuit from the outside.
Current sensors are used in situations where the value of the current flowing in a particular circuit is desired. Current sensors that are directly integrated into a circuit are often used to measure and record the value of the current that flows in a circuit on a regular basis. In this case, the information is used for self-maintenance of equipment in operation.
On the other hand, current sensors that clamp the circuit from the outside are useful in non-routine situations, such as pre- and post-checking of energization during electrical work or checking the energized part to investigate the cause when an electrical circuit fails.
A current sensor directly connected to a circuit acts as a resistor and measures the actual current flowing through the circuit based on the voltage applied to the circuit. Clamp-type current sensors cannot measure the actual current flowing in a circuit because they are not directly connected to the circuit. Therefore, the magnetic field generated from the current flowing in the wires of the circuit is measured and output as a current equivalent value.
Specifically, there is a magnetic core in the clamping section, and the magnetic field is detected at that section and converted to a current value. Since the polarity of the magnetic field differs between AC and DC, the principle for observation also differs. Among the various measurement methods, the Hall element method is one that can detect both DC and AC.
In this method, a Hall element is incorporated in the magnetic core to measure the magnetic field generated in the circuit under test as a voltage, which is converted into a current value via a built-in amplifier.
There are two types of current sensors: direct-current circuits and alternating-current circuits. It is important to select an appropriate current sensor depending on the current component of the circuit you wish to measure and the accuracy you wish to measure.
Generally, if you do not require a large degree of accuracy, select a Hall element type that can handle both DC and AC circuits, but it may not clamp well depending on the installation position of the circuit.
For AC, select a Rogowski type current sensor without a core, which allows measurement while bending the clamping section.
Current sensors have different applications depending on the characteristics of the detection method. Current detection methods can be broadly classified into two types: resistance detection type and magnetic field detection type.
Resistance Detection Type
The resistance detection type detects current by inserting a resistance called a shunt resistor at the point where the current to be measured flows. According to Ohm's law, a voltage drop occurs when a current flows through the resistor.
By measuring this voltage value and dividing it by the resistance value, the current can be measured. Although it depends on the circuit design, it is common to select a small resistance value for the shunt resistor so that it does not affect the operation on the circuit.
However, when measuring large currents, heat generation and withstand voltage of the resistor value can be a problem. If the voltage drop is small, a current sense amplifier should be used to amplify the voltage to be detected.
Magnetic Field Detection Type
The magnetic field detection type measures the magnetic field created by the flowing current. According to Ampere's law, when a current flows, a magnetic field is generated in the direction in which the right-hand thread turns when the direction of the current is the direction in which the right-hand thread moves.
This magnetic field is detected using a Hall element. A Hall element is an element that uses the Hall effect, a phenomenon in which an electromotive force appears in a direction orthogonal to both the current and the magnetic field, and is used to detect the magnetic field.
The resistance detection type using a shunt resistor is used for overcurrent detection in power supplies such as DC/DC converters, LED drivers that are driven by current, and current control and circuit protection in motor drive circuits. The magnetic field detection type using Hall elements does not require an element to be placed on the circuit pattern where the current is to be measured, so it is also used in clamp ammeters that clamp wires to measure current and in motor position detection.
Current detection using resistance detection type with a shunt resistor or magnetic field detection type with a Hall element often produces a small output, so when a circuit is configured with discrete components, it is common to combine a current sense amplifier or operational amplifier in the circuit. Manufacturers also offer dedicated ICs with built-in amplifiers instead of discrete components, which can be selected according to the application and characteristics.
*Including some distributors, etc.
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With over 35 years of experience, Algodue Elettronica has specialized in the design and manufacture of instruments for the measurement of energy, the monitor of electrical usage, and the analysis of energy power quality for low voltage systems. Starting with the in-house development of our products, we provide technical knowledge and consulting service to research and realize custom-made solutions according to special requirements. Every instrument from Algodue product range allows an efficient and performative measurement of power consumption, and establish the actions needed to reduce energy costs. Each instrument covers multiple requirements coming from the main sectors like industry, manufacturing, commercial, residential, and the ever-increasing renewable energies. Algodue supports all customers with a dedicated team of specialized technicians and engineers for pre-sale consultancy service for device adaptation and design of specific projects, and after-sale activities to follow every request of support and service. We invest 10% of our yearly profit on research and innovation,to guarantee customers with always up-to-date solutions in line with the latest market trends.
Time Mark Corp., founded in 1972 and based in Tulsa, Oklahoma, is a manufacturer of special control devices and related accessories for various industrial applications. The company's product folio includes 3-phase monitors and testers, current monitors, liquid level controls, transformers, and, transducers that have a variety of uses in digital transmission, electronics gadgets, appliances, energy, and, electrical industries. The company also offers a 5-year warranty on 3-Phase Monitors and all other standard products have a 1-year warranty.
Setra Systems is a manufacturer and supplier of sensing solutions, founded in 1967 and headquartered in Massachusetts, USA. The company's product portfolio includes various sensors and instruments, such as differential pressure sensors, absolute pressure sensors, relative pressure sensors, and more. These sensors find applications in HVAC, medical, industrial automation, and aerospace industries. The company also provides custom sensor solutions tailored to the specific requirements of its customers. The company offers technical support to help customers select suitable sensors for particular applications.
Pearson Electronics, a company established in 1955 and based in Palo Alto, California, manufactures current-monitoring transformers for AC measurements. The company was founded by Dr Paul Pearson, inventor and patent holder of the precision wide-band current transformer. Pearson Current Monitors' products measure complicated transients and periodic signals from a few Hertz to well into the megaHertz region. They also specialize in High Voltage Pulse Transformers used in high-power microwave tubes and Capacitive Voltage Dividers. The company has a Quality Management System that is accredited to ISO 9001:2015.
Littlefuse was founded in 1927 and headquartered in the United States. Littlefuse is a diversified industrial technology manufacturing company with customers globally. Littlefuse has products segments which are electronic, industrial, and transportation. Electronic segment products include fuses and fuse accessories, positive temperature coefficient resettable fuses, polymer electrostatic discharge suppressors, and varistors. Transportation products include blade, resettable, and high-current and high-voltage fuses, as well as battery cable protectors; fuses, switches, relays, circuit breakers, and power distribution modules. The Industrial segment offerings include contactors, transformers, and temperature sensors for use in renewable energy and energy storage systems, electric vehicle infrastructure, HVAC systems.
Lion Precision Inc., a company founded in 1958 and headquartered in Minneapolis, Minnesota, is a manufacturer and supplier of precision measurement and sensing solutions. The company specializes in providing capacitive displacement sensors and noncontact capacitive sensing systems. Their products are utilized in various industries such as semiconductors, automotive, medical, and aerospace for applications that require accurate measurements. Their sensor products are used for position control, thickness measurement, vibration analysis, and gap sensing. Additionally, the company also provides technical support, calibration services, and customization options to meet specific customer requirements.
Allegro MicroSystems, founded in 1990 and headquartered in Manchester, New Hampshire, is a fables manufacturer of sensor integrated circuits and application-specific analog power integrated circuits. Its diverse product portfolio includes sensors, regulators, and motor drivers used in several areas, including clean energy, automation, E-mobility, and computer markets. The company supports customers through its design and application centers located in South America, Asia, North America, and Europe. It went public in 2020, and its shares are traded on Nasdaq Global under ALGM. It ships over one billion units annually to support its more than 10,000 customers worldwide.
Tokin America Inc., headquartered in San Jose, California, is a supplier of passive electronic components in North, South, and Central America and is a subsidiary of Tokin Corporation. Its diverse product range includes capacitors, noise countermeasure components, and sensors used in several industries, including telecommunication, automotive electronics, and digital home appliances. The company also provides specialized design support and works with several distributors within the United States, including Future Electronics, WPG Americas, and Bravo Electronics.
Crocus Technology, founded in 2006 is a manufacturer of TMR sensor technology solutions for designing and manufacturing industrial, automotive, and consumer electronics headquartered in Milpitas, California. The company, which operates an R&D office in Grenoble, France offers position & current sensors, and sensor solutions used in power delivery units, green energy, robotics, medical wearables, and industrial automation applications. Their position sensor portfolio comprises omnipolar, bipolar, and unipolar with a digital switch, analog sensor, 1D linear sensor, or 2D angular sensor type. The current sensors are available as unipolar/bipolar contactless or integrated sensors with a maximum current of 65A and field of 24A.
Red Lion was founded in 1972 and headquartered in York, Pennsylvania as part of Spectris, PLC, headquartered in Egham, England. The company serves manufacturing, oil & gas, alternative energy, transportation, and water industries with products for their industrial automation and industrial networking needs. The company’s industrial automation division creates controllers, secure remote access platforms, panel meters, and process control devices. The industrial networking division offers ethernet devices, IIoT gateways and routers, and communication converters.
Honeywell International Inc. was founded in 1885 and headquartered in Charlotte, North Carolina. Honeywell is a diversified technology and manufacturing company to global customers in many industries such as aerospace, building technologies, performance materials, manufacturing, and safety. Honeywell produces hardware and software solutions for each industry it serves. In building technologies, Honeywell designs access controls, electrical and wiring, fire life safety, and employee training services. In aerospace, Honeywell designs cockpit systems and displays, engines, cabin management and cleaning, and health and usage monitoring.
Raveon Technologies Corp., established in 1985, is a manufacturer of long-range data radio modems in the Wireless Data Radio Industry, based in California, USA. The company specializes in GPS tracking radios, SCADA products, and Autonomous RTUs. Their wireless communication solutions are used in diverse industries, including mining, public safety, smart cities, and more. They are an ISO-certified company that takes efficient OTA protocols, and AES encryption very seriously. Using IoT gateways to provide flexible connections, Raveon supplies custom solutions for each of its customers.
Grace Technologies is a manufacturer of electrical safety devices and predictive maintenance tools originally founded as Grace Engineering in 1993 before rebranding in 2020. Based in Davenport, Iowa, the company offers various panel interface connectors, voltage indicators or permanent electrical safety devices (PESDs), and IIoT smart sensor devices under the brand names GracePort, GracePESDs, and GraceSense. Grace Technology products are primarily used by clients in the manufacturing, energy, and infrastructure sectors, including by metal fabricators, water treatment facilities, and power plants.
CUI Devices, established in 1989 and headquartered in Lake Oswego, Oregon, is an electronic components manufacturer that is ISO 9001 certified. It stocks motion, sensor, and relay solutions and works with several distribution partners, including Mouser Electronics, Digi-Key Electronics, and Electro Sonic. The company gives back to the community by supporting organizations like Tualatin School House Pantry, Girls Who Code, and Friends of Trees, which aim to uplift society by providing basic needs, STEM education, and environmental stewardship. It has contract manufacturing facilities in other countries, including China, Vietnam, and Japan.
KEMET has a portfolio of over 1,600 patents serving the automotive, aerospace, industrial, telecommunications, computing, consumer, and medical devices. KEMETs devices provide filtering, sensing, energy storage, power conversion, and haptic actuator technology. Among these devices are capacitors, electromagnetic compatibility (EMC) components, resistors, circuit protection devices, inductors, sensors, Piezoelectric devices, release, transformers, and engineering kits.
National Control Devices LLC, established in 1995 in Osceola, Missouri, is a manufacturer and designer of IoT-connected NCD devices and hardware for tech companies. The company makes IoT devices such as sensors, relay controllers, and accessories. It also provides services like customizing enclosures and boards and printing colors that help customers reduce wiring, power consumption and production costs. The company has partnered with PyComm, Particle, Losant, Blynk and Cayenne brands. Its authorized distributors include Relay Pros, Reboot Shop, Logic Bus, and Digi Key.
Allied Electronics Inc., founded in 1991 with headquarters in the USA, is a distributor and supplier of fuel and vehicle servicing station equipment and accessories. The company's extensive product line of over 57,000 products includes forecourt controller parts, fuel dispenser parts, air compressors, and power conditioners. The company also provides rebuilt parts by brands that include Bennett, Daktronics, FE-Petro, and Gasboy. The company's services include equipment financing, primarily serving the retail petroleum industry, including car wash and price sign manufacturers.
Rochester Electronics, LLC is a manufacturer stocking distributor of end-of-life semiconductors and the broadest range of active semiconductors that is headquartered in Newburyport, Massachusetts, and was founded in 1981. The company caters to manufacturing services ranging from design, wafer processing, testing, reliability, and IP Archiving. These specifically include OCM, build-to-order products, process flows, and standard packaging creation. The company pivots on manufacturing and distributing semiconductors that are no longer produced by its original manufacturer.
CS INSTRUMENTS USA is based in Bluffton, South Carolina, and is the American subsidiary of CS INSTRUMENTS headquartered in Tannheim, Germany. CS INSTRUMENTS was established in 2002 is a manufacturer and distributor of compressed air technology and related products, generally used in industrial and manufacturing settings. CS product lines encompass a complete compressed air monitoring system with individual segments including dew point, compressed air quality, leak detection, chart recording, and software. Many of these components can be used in other capacities, such as flow measurement devices in underwater settings such as marine or water treatment industries.
PREMO Group is a magnetics manufacturer founded in 1962 and based in Malaga, Spain. The company develops, manufactures, and sells electronic components. The company operates 3 manufacturing plants in Wuhu City (China), Tanger (Morocco), and Quang Nam (Vietnam). Also, PREMO operates research and development centers in France, Germany, Korea, Spain, USA, and China. The main focus of the PREMO Group are products used in IoT, M2M, VR, Connected and Electric Vehicles. Their product list comprises of RFID antennas, Motion Tracking Sensors, and power transformers. PREMO also manufactures inductors & chokes, current sensors, EMC filters, and PLC components.
Camille Bauer Metrawatt was established in 1900 headquartered in Wohlen, Switzerland and it is a manufacturer of measuring instruments. The company specializes in the manufacture of angle of rotation and process measurement instruments. It offers a comprehensive array of services including measurement and display, position sensors, monitoring and control, software, and systems. Additionally, the company provides testing technology and medical technology solutions. This company also produces current sensors/clamps, power converters, and current links. The company is affiliated with various memberships and working groups such as Cenelec, Swissmem, and Swissmig.
Knick Elektronische Messgeräte GmbH & Co. KG, founded in 1945, is a manufacturer headquartered in Berlin, Germany, providing interface technology and process analytics solutions. The company's industrial interface products include transducers, universal isolated and isolated standard signal conditioners, as well as mains- and loop-powered isolators. These products, marketed under the BasicLine and ProLine brands, are utilized across sectors such as e-mobility, energy, and railways. The company also offers industrial transmitters, sensors, and fittings for process analytics. These products cater to industries including biotechnology and pharmaceuticals, food and beverages, as well as water and wastewater.
Melexis NV, founded in Brussels, in 1989 is a supplier of micro-electronic semiconductor solutions. The company's product portfolio includes Mixed Signal Integrated Circuits, Automotive Semiconductors, IC Sensors, Power ICs for Automotive Actuators, and Infrared Thermometers and sensors. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company has a global distribution channel, a technical and customer support center and 18 offices worldwide.
VPInstruments, established in 1999 and based in Delft, Netherlands, is a manufacturer and supplier of energy management tools and flow measurement equipment. The company's product range includes Energy Monitoring devices, Flow meters, Dew point sensors, Power meters, and Installation tools. These products assist in detecting leakages, monitoring efficiency, and allocating costs. Primarily, the products serve industries such as the manufacturing of materials, steel, glass production, food & beverage, automotive, and textile. The company's services include energy management, compressed air flow metering, energy savings initiatives, and remote asset monitoring.
Thousand Hundred Industrial Co. Ltd., established in 1993, is a Taiwanese manufacturer of current transformers headquartered in Hokou, Hsinchu. Operating an Underwriter Laboratories (UL)-approved witness laboratory at its head office and a manufacturing facility in Guangdong, China, the company develops a range of products, including split-core, clamp-on, and mini precision current transformers. Other products include zero-phase, direct current (DC)-immune, and high-frequency current transformers. It also offers encapsulated and potential transformers, current transducers, and hall-effect current sensors. As an ISO 9001:2015-certified company, it serves over 1,300 clients in 67 countries.
GFUVE ELECTRONICS, founded in 2005 and headquartered in Beijing, China, is a manufacturer of electronic measurement and test equipment. The company offers an extensive product portfolio, including split-core current transformers, high-voltage ammeter recorders, IEC61850 test suite software, monitoring systems for pumping units, and phantom load power sources. These products are applied by researchers and engineers in laboratories and educational institutions, maintaining the stability and reliability of the electrical grid, controlling energy generation from sources like solar panels, and monitoring power distribution systems to track the flow of electricity.
Ingeteam Power Technology S.A., established in 1972 and based in Zamudio, Spain, is a renewable energy equipment manufacturer and supplier. The company's products include wind converters, electric generators for wind power, and synchronous motors for surface water pumping. They are used in various sectors, including renewable energy generation, electric utilities, and the marine and ports industry. The company provides technical support, customized products, and training programs, and exports to the United States, Australia, and Germany.
CHEEMI TECHNOLOGY CO., LIMITED is a manufacturer based in China, specializing in cutting-edge technological solutions. The company's wide range of products includes sensors, transducers, switches, and transmitters. These products are used in various fields such as in vehicles, OEM device manufacturing, measuring apparatus, home appliances, and many more. The company also has a well-established partnership with renowned Universities like Tsinghua University, Nanjing University of Aeronautics and Astronautics, Nanjing Institute of Technology among other universities and research institutes.
Quality Electronic Engineering Design (QEED), established in 2012 as the electronics division of DEM S.p.A., is an Italian manufacturer based in Longarone, Belluno, specializing in electronic products for industrial automation. Supported by a production plant in Packrac, Croatia, and an electronic compatibility (EMC) laboratory, this division develops a range of products. These include single and three-phase network analyzers, signal converters, and Modbus input/output (I/O) servers, as well as various current transformers, including standard, split-core, and Rogowski options. The division also offers customized products and related software solutions.
Electrohms Private Limited, established in 1973, is a designer and manufacturer of voltage and current transformer and sensor solutions with headquarters in Bangalore, India. The company offers various standard and custom-engineered solutions involving the design and production of custom products for the customer’s unique needs. The company adheres to ISO, CE, UL, and ANSI standards and offers solutions for various industries including railways, solar & wind, consumer, and EV chargers. It has also introduced customized smart-sensor solutions with communications for use in IoT and smart monitoring applications.
Angst+Pfister Sensors and Power AG, founded in 1987 and headquartered in Zurich, Switzerland, is a manufacturer of power supplies, and electronic components. It operates as a subsidiary of the Angst+Pfister Group, serving a global clientele. Its product range encompasses inertial sensors, power supplies, and current sensors, including AC/DC power supplies, DC/DC converters, DC/AC inverters, and LED AC/DC power supplies. These components find applications in overload protection, current metering, and battery charge monitoring. Depending on requirements, the company is also capable of delivering modified standard products or customised solutions, and offers differential probes for the development, maintenance, and repair of solar plants.
NIDEC COMPONENTS CORPORATION, established in 1967 and based in California, United States, is a manufacturer of various types of sensors. The company's range of products includes pressure sensors, switches, potentiometers, and encoders. The company also produces electronic devices, including switches and trimmer potentiometers. All of its products are designed for companies that manufacture electronic and mechanical components, as well as actuators. Notably, the company's core scanning device is a crucial component in autonomous driving systems. These products are supplied to clients worldwide, including Japan, the United States, Korea, Taiwan, and Singapore.
Cedrat Technologies, established in 1977 and headquartered in Meylan, Rhone-Alpes, France, is a dynamic and precision mechatronic equipment and systems designer, manufacturer, and supplier. The company specializes in developing custom mechatronic systems that offer multi-degree-of-freedom mechanisms for motion control, ultrasonic, and sonic processes used in detection systems for health monitoring and remote detection systems for position, force, and torque measurements. It also produces individual components such as smart actuators and smart sensors, which are primarily designed for aerospace industry applications.
Circutor, established in 1973 and headquartered in Barcelona, Spain, is a manufacturer that develops technology and solutions for the electrical and energy sector. The company's products include measurement and control devices, metering equipment, control systems, and harmonic filtering. It also offers power factor correction and portable power analyzers, such as the MYeBOX-150+3 FLEX-R45. Its products help to reduce CO2 emissions by reducing energy consumption. It serves a range of industries such as generator, tertiary sector, and home use.
CSM, headquartered in Filderstadt, Germany, is a pioneering provider of decentralized measurement technology in vehicle development, founded in 1983. The company offers CAN bus and EtherCAT measurement devices for popular vehicle manufacturers, supporting hybrid and electric vehicle development. Partnered with Vector Informatik, it has developed scalable E-Mobility Measurement Systems for power analysis in E-vehicles. CSM specializes in compact, secure measurement modules used globally by vehicle manufacturers. The company also produce programming tools, storage media, and drives for industrial use.
TAMURA Corporation, founded in 1924 and headquartered in Tokyo, Japan, serves as a manufacturer and supplier of electronic and magnetic components. Its product lineup encompasses gate drivers for power switches, current sensors for measuring current flow, power modules for efficient power conversion, LED drivers for LED control, and transformers, reactors, and choke coils for energy transfer and regulation. These solutions provide dependable choices for system and machine design across industrial, automotive, communication, medical, and lighting sectors.
Isabellenhütte Heusler GmbH & Co. KG is a manufacturer of electronic materials and components, established in 1482 and based in Dillenburg, Hessen. Their diverse product line includes electrical resistance materials, thermoelectric materials, and passive components. Isabellenhütte alloys, resistors, and sensors play a critical role in both conventional and electric vehicles, supporting various applications including battery management systems, steering mechanisms, and braking equipment. These components enable precise current measurement, thereby ensuring compliance with rigorous safety standards.
Asahi Kasei Microdevices Corporation, founded in 1980, is a Japanese manufacturer headquartered in Chiyoda City, Tokyo, specializing in sensing devices and integrated circuit (IC) products. The company’s product offerings include magnetic sensors, current and gas sensors, audio devices, and specialty devices. These products have diverse applications, such as in personal electronics, where AKM provides compact and low-consumption features for sound and magnetic sensing. They offer CO2 sensors and transceiver IC for millimeter-wave radar with high spatial recognition for smart homes. Additionally, AKM provides rotation angle sensors in industrial equipment like robots and motors to achieve accuracy and off-axis alignment simultaneously.
Vacuumschmelze (VAC), founded in Germany, in 1913 is a manufacturer of magnetic alloys and their downstream solutions. The company's product portfolio includes Magnetic Alloys, Photovoltaic, Common Mode Chokes, Stamped Parts, Magnet Assemblies, and Inductive Components. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company also provides equipment repair, instrumentation system upgrades, and retrofits, preventive maintenance, and warranty services.
LEM, founded in 1972 at Meyrin, Switzerland is a manufacturer of transducers for measuring electrical parameters. The company’s core products include current and voltage transducers that are used in welding, UPS, renewable energies, high precision and the like. They also offer vast products used in the industrial sector such as power supplies for industrial applications, automotive applications and AC/DC converters among others. LEM has production plants in: Beijing, China; Geneva, Switzerland; Sofia, Bulgaria and Tokyo, Japan, and the company has been included in the SIX Swiss Exchange since 1986.
SoftEnergy Controls Inc., founded in 2009 and based in Fukuoka, Japan is a manufacturer of production equipment for secondary batteries and system development related to EV infrastructures. The company’s products are charge-discharge inspection equipment, real cyclers and current sensors. SoftEnergy has Japan-based offices in Kitakyushu, Kyushu, Kanto, Kansai, Chubu and Tohoku, and outside-based offices in the USA, and Korea. Its group companies are ECOLONUM Inc., and Dalian SoftEnergy Controls Co., Ltd.
NiCera - Nippon Ceramic Co., Ltd. was established in 1975 in Japan as a manufacturer of ceramic sensors. The company designs infrared sensors that have applications in home electronics such as microwaves, air conditioners, heaters, etc. Ultrasonic sensors have been used in automobiles for back and corner sensing and for automatic parking systems. Current sensors are also used in automobiles as well as in industrial equipment along with gas sensors that have applications in the agricultural industry such as controlling CO2 concentration. The modules of human detection sensors and LED power supplies are also part of the production.
MultiDimension Technology (MDT) is a manufacturer of magnetic sensors founded in 2010 and headquartered in Zhangjiagang Free Trade Zone, Suzhou, Jiangsu Province, China. The company produces a series of Sensor ICs and Sensor modules such as Anisotropic MagnetoResistance (AMR), Giant MagnetoResistance (GMR), and Tunneling MagnetoResistance (TMR) that are used in the technical field of magnetoresistive transducers for measuring magnetic field and other parameters. They also offer magnetic device wafer fabrication along with designing and testing features enabling MDT to provide solutions for a wide range of applications in the magnetic sensor market.
Isabellenhütte USA, founded in 1989 and headquartered in Swansea, MA, United States, is a manufacturer of precision alloys and power resistor products. The company's products use precision measurement technology, such as DC current, voltage and temperature sensors, resistance alloys, and various resistors, including surface-mounted assemblies, bus-bar-mounted assemblies, and hybrid-mounted assemblies. It serves industries that include automotive, chemical processing, and medical equipment manufacturing. Isabellenhütte USA is a wholly owned subsidiary of Isabellenhütte Heusler GmbH KG, located in Dillenburg, Germany.
Hoyt Electrical Instrument Works Inc., established in 1904, is a manufacturer of analog and digital panel meters, transformers, shunts, switches, and personal safety devices, located in Penacook, New Hampshire, the United States. The company’s products are designed to meet and exceed industry standards. It offers a wide range of test and measurement instruments, making its a comprehensive solution for customers’ needs. It is not only an analog panel manufacturer, but also has evolved to provide value-added custom solutions that keep the world spinning in the right direction.
American Aerospace Controls, Inc. (AAC), established in 1965 based in Farmingdale, New York, is a manufacturer of AC & DC, voltage, power, and frequency transducers. The company, renowned for electrical sensor design, serves aerospace, defense, rail, and industrial applications. Its compact, durable, and power-efficient sensors enhanced the UH-60 Black Hawk program. It collaborates with clients for tailored solutions, optimizing form, fit, and function. All company products are designed, developed, and manufactured in the USA. The company is awarded as an Elite Supplier by Lockheed Martin for four years and as AUAE's “Excellent Supplier of The Year” for 2020.
Define Instruments Inc. is a manufacturer of IIoT products that was established in 1990 in Dallas, Texas, USA. The company specializes in IIoT gateways, data loggers, signal conditioners, and related products. These products include its Nimbus brand processing interface, its Zen brand 16-channel remote terminal unit, and its Merlin brand universal input digital indicator. The company operates internationally, with an additional manufacturing facility located in Auckland, New Zealand. It mainly serves clients in the industrial automation, industrial manufacturing, and energy sectors.
Acme Chip Technology Co. Ltd., founded in 2008 and based in Shenzhen, China, is a distributor of electronic components that is ISO 9001 certified. Its products include sensors, power supplies, and optical inspection equipment sourced from several manufacturers, including Advanced Linear Devices Inc., Central Semiconductor Corp., and Fluke. The company also offers a large stock of electronic components, including obsolete components and old code chips that are always available for immediate shipment.
Founded in 1885 at Cork, Ireland, Johnson Controls Inc is a manufacturer of smart building solutions and safety systems for commercial and domestic needs. The company with their OneBlue product focuses on producing blueprints for advanced and healthy technologies associated with schools, commercial buildings, hospitals and residences. The products comprise HVAC systems, building automation, security systems, energy storage, and automotive batteries. These products are used for their effectiveness in offering energy efficacy, safety, comfortability and sustainability for the dwellers. Their AI based intelligence functioning offers more productivity while being sustainable and environment friendly.
Socomec is based in Gurgaon, Haryana, India, and is a manufacturer of power safety and control products that was established in 2007 as a subsidiary of the Socomec Group. The company’s product lineup includes uninterruptible power supply (UPS) systems for protecting important electronic installations, power meters for monitoring applications, and automatic as well as manual transfer switches for managing or protecting the supply of power. The company is ISO 14001 and ISO 45001-certified, and mainly serves clients in the commercial and industrial sectors.
Infineon Technologies AG (Infineon) is headquartered in Neubiberg, Germany. Infineon designs, develops, manufactures, and markets semiconductors and related system solutions worldwide. Infineon’s automotive segment produces microcontrollers, discrete power semiconductors, IGBT modules, industrial microcontrollers, power and radar sensor ICs, SiC diodes, MOSFETs voltage regulators, comfort electronics, infotainment, powertrain, and security products. Industrial Power Control segment provides bare dies, discrete IGBTs, and driver ICs among other components. Power & Sensor Systems segment offers gas and pressure sensors, MEMS microphone chips, control ICs, and GaN power switches among others.
U.R.D., LTD., was founded in 1973 in Plaisians, Rhone-Alpes, and is a manufacturer and supplier of electronic parts and energy-efficient devices such as data conversion equipment, power measuring equipment, alarm equipment, and AC and DC sensors. The company makes alarm equipment like overcurrent and undercurrent alarms and flowing current detection modules. Its AC and DC sensor product catalog includes LED indicators, general-purpose CTL series, wire clamp split sensors, and high-frequency CT penetrated type. The company also offers accessories such as mounting brackets, assembly drawings, and receptacles.
Bender GmbH & Co. KG, established in 1946 and based in Hessen, Germany, is a manufacturer of electrical safety products and solutions. The company offers insulation monitoring equipment, power supplies for medical applications, and measuring and monitoring relays, emphasizing electrical safety for both unearthed and earthed power supplies. Its solutions cater to various sectors, including mobility, energy, healthcare, and industrial applications. The company's solutions are designed to protect people, machinery, and the environment from electrical hazards, also providing critical information on power supply status to prevent potential dangers and downtime.
Shenzhen Socan Technologies Co. Ltd., established in 2005 and headquartered in Shenzhen, China, is a current sensor and electrical measurement instrument designer and manufacturer. The company's primary products include AC and DC current sensors, leakage current sensors, and voltage transducer transmitters. It also provides smart digital sensors and DC panel modules. These products are used in the manufacture of industrial power supplies, EV charging equipment, and DC power system output measurement and control systems. The company offers contract product design services, private label manufacturing, and original equipment manufacturing.
Porlanmaz Bakery Machinery Co., founded in 2001 and headquartered in Konya, Turkiye, is a manufacturer and distributor of bakery machinery and assist machinery. The company's products include stone-based multi-deck ovens (cyclothermic ovens), spiral mixers with mobile bowls, and volumetric dough dividers. These products are used in bakeries as well as food processing plants to bake various foods. The products are available individually or can be configured into a complete line to meet client requirements. It serves clients globally, with projects completed in Europe, the Middle East, and Africa.
ZSY Group Ltd., based in South Croydon, England, United Kingdom, was originally founded as ZhenShangYou Group Ltd. in 2009 before its incorporation in 2011, and is a manufacturer of electronic measuring and testing equipment. The company offers laser probes for inspecting the diameter of bored or drilled holes in workpieces, scanners equipped with tracking software for welding robots, and static deformation measurement systems for product inspections after unloading from prolonged transit. It also offers 3Ds dynamic scanners, laser distance sensors, and absolute linear position sensors. The company chiefly serves clients in industrial automation and manufacturing operations.
eddylab GmbH, established in 2014 and headquartered in Bayern, Germany, is a manufacturer of measuring technology for distance and position detection. The company's products include draw-wire sensors, signal converters, and laser distance sensors. It also offers software for the analysis and configuration of its products. These products have applications in flight simulator positioning, cylinder stroke control for mold oscillation, and minimizing shrinkage during injection molding with UV curing. It serves sectors that include chemical processing, power generation, and material testing.
KOHSHIN ELECTRIC CORPORATION, founded on 1966, and headquartered in Okayama, Japan, is a manufacturer specializing in electrical and electronic components. Its product portfolio includes current sensors, electrical indicating meters, electronic parts, inverters for power plants, and power supplies. These products play a crucial role in measuring and controlling electrical currents across various applications such as power plants, power supplies, UPS systems, NC machine tools, welding equipment, in-vehicle technology, and lifts. The company maintains quality with its ISO 9001-certified Quality System.
Accuenergy Inc., started in 1998 and based in Toronto, Canada, is a manufacturer of industrial power and energy meter solutions. Its products include power meters, current transformers, and communication devices, and it also provides industrial control panel solutions. The company has a cloud energy management software called AcuCloud, which provides access to metered data and tools to analyze, import, and export data. It is ISO 9001, ISO 14001, and ISO 45001 certified and delivers solutions to over 170 countries worldwide. It has offices in Los Angeles, Beijing, and Pretoria and is a certified UL 508a shop that offers any customization.
NK Technologies, founded in 1982 and based in San Jose, California, is a manufacturer of sensing products and current measurement solutions. Its portfolio of over 1,300 models includes current sensing switches, signal converters, and AC transducers. The company’s ground fault relays allow the system designer to decide what the relay output needs to do if a fault in the ground is sensed. The products are RoHS 3 compliant and conflict-free, and some selected products are listed as UL and CE. The company is ISO 9001 and ISO 14001 certified and provides a 5-year product warranty.
Panel Components & Systems, Inc. is based in Stanhope, New Jersey, USA, and is a manufacturer of electrical instruments and components established in 1992 before its acquisition by Germany’s PC&S GmbH. The company primarily offers products for controlling or protecting electrical circuits such as protective relays, and products for monitoring or measuring electrical parameters such as analog meters. It also offers specialized DC test equipment, including generator controllers and resistors. The company’s products are commonly used in power generation, transportation, and automation operations.
Electro Standards Laboratories is a designer and manufacturer of electronic data acquisition and communication products that was established in 1976 in Cranston, Rhode Island, USA. The company’s product lineup includes linear variable differential transformers (LVDTs), load cells, and strain gages for collecting and processing data from sensors. It also offers network converters and switches for enabling and protecting data transmissions over fiber optic networks. The company’s products are used mainly by clients in the defense, telecommunication, and public utilities sectors.
TEKTRONIX, INC., founded in 1946, is a manufacturer of measurement solutions used in 3D sensing, EMI/ EMC testing, high-speed serial communication, material science engineering, and Wireless & RF testing. The products include oscilloscopes & probes, signal generators, margin testers, multimeters, and analyzers. The company's products are used in advanced research, aerospace & defense, automotive, power semiconductor, and medical industries. The Bracknell Berkshire company offers calibration, repair, asset management, package assembling, and testing services following NEMA, HAlT & HASS, environmental, and shock-vibration testing.
Struthers-Dunn is headquartered in Timmonsville, South Carolina, and was established in 1923, making it one of the oldest relay manufacturers in the world. The company’s relays and related electrical components are utilized in traffic signals, power generation, factory automation, construction, and water treatment applications. The company’s product lines primarily consist of relays such as general purpose, motor, timer, and sequencing relays. Other products include accessories and special-purpose relays for super high voltage applications such as gas turbine power plants.
Texas Instruments Incorporated was founded in 1930 and is headquartered in Dallas, Texas. Texas Instruments is a producer of high tech equipment for industrial, automotive, personal electronics, communications equipment industries. Texas Instruments designs, manufactures, and sells semiconductors to electronics designers and manufacturers in the United States and internationally. Texas Instruments operates in two segments: analog and embedded processing. The Analog segment offers power products, including battery-management solutions, DC/DC switching regulators, power switches, linear regulators, voltage references, and lighting products. The Embedded Processing segment offers microcontrollers that are used in fields such as electronic equipment and digital signal processors for mathematical computations.
ST Micro Electronics is a global semiconductor company serving customers with innovations to have a positive impact on people's lives. Their product line is micro electronic systems, such as switches, controllers, sensors and drivers. The main selling point of ST Micro Electronics is its provision of sustainable products, and introducing their electronics to create a more sustainable world. The company, as well as providing the electronic devices, also provides software and support, ensuring that all fields are covered to provide a fully provide a supported and strong relationship with their customer base. ST Micro Electronics believe that technology plays a key role in helping to solve environmental and social challenges, which is why their semiconductor technologies start with their employees, their customers and partners.
Monolithic Power Systems (MPS), founded in 1997 and headquartered in San Jose, California, is a manufacturer of integrated circuits (ICs). Their product range includes switch-mode power supplies (SMPS) for converting AC or DC power to lower voltage DC power, LED drivers for driving LED lights, battery management ICs to manage power in portable devices, power factor correction (PFC) ICs for improving power supply efficiency, and sensorless motor control ICs to control motors without position sensors. MPS's solutions find applications in consumer electronics, industrial, and automotive industries, offering efficient power management solutions to enhance various electronic devices.
Win Source Electronics is an AS9120B-certified business-to-business (B2B) distributor of electronic products, accessories and components that was established in Shenzhen, China, in 1999. The company stocks products from over 3,000 manufacturers, including C&K Components, Fujitsu Electronics America, and American Zettler, Inc. These products include power supplies and converters, memory modules, and RFID devices for wireless communication. The company primarily markets its products to clients in Asia's consumer electronics, energy, and industrial manufacturing sectors.
Multi Measuring Instruments Co., Ltd. was founded in Chiba, Japan in 1986 and is headquartered in Tokyo. As per its namesake, Multi offers a vast array of measuring and testing equipment used across a number of industries. Some of their offerings include voltage meters, network testers, lux meters, cable locators, sound meters, various thermometers, gas analyzers, and water quality meters. Multi Measuring Instruments has a mission for its products to improve the global environment by detecting inefficiencies and leaks, developing products that will be useful for solar and wind power generation.
SENECA srl, established in 1986 and based in Via Austria, Italy, is a manufacturer and supplier of automation interfaces. Its product portfolio includes data acquisition, automation systems, industrial communications, remote control, power monitoring, and electrical measurement. They are used in multiple industries which include steel, water treatment, automotive, oil, gas, chemical, metal, and pharmaceutical. The company also offers automation solutions ranging from single components to the implementation of turnkey systems.
Suncall Corporation, founded in 1943 and headquartered in Ukyo-ku, Kyoto, Japan, is a manufacturer and distributor of automotive parts, hard disk-related components, printer-related products, and communication-related items. The company offers a range of automotive parts, including boot clamps, detent springs, and ring gears. Additionally, the company also provides connectors and adapters for optical communications. Within its printer-related product category, it manufactures shafts, torque limiters, and clutches for business machines. In the realm of hard disk-related products, it offers shock-resistant suspension and DSA suspension for HDD. It has achieved IATF 16949 certification for Shunt Busbars produced at the South Kyoto Plant.
MOD-TRONIC Instruments Limited was established in 1972 in Brampton, Ontario, Canada. MTis a distributor of industrial sensors, transducers, heaters, controls, and instrumentation, primarily made in the USA as well as Japan, Switzerland, and Germany. MT’s customers are primarily in the aerospace, building automation, manufacturing, medical, military, oil and gas, and water treatment industries but also serves individuals. MT offers an above industry standard 5-year warranty and technical support on every product sold.
Rockwell Automation, Inc. was founded in 1903 and is headquartered in Milwakee, WI. Rockwell Automation provides industrial automation and digital transformation solutions around the world. Rockwell Automation operates through their intelligent devices, software & control, and lifecycle services segments with both hardware and software products and services. The Intelligent Devices segment offers drives, motion, safety, sensing, industrial components, and configured-to-order products. The Software & Control segment provides control and visualization software and hardware, information software, and network and security infrastructure solutions. The Lifecycle Services segment provides consulting, professional services and solutions, and connected and maintenance services through independent distributors.
HVACQuick is an online distributor and retailer of HVAC products, parts, and repair or maintenance tools that was established in 2003 in Medford, Oregon, USA. The company primarily stocks products from brand manufacturers such as Panasonic, Fantech, and S&P. These products include radon and crawl space ventilation components, attic fans and vents, and filter boxes and filters. It also offers technical support, as well as warranty and return services. The company commonly markets to customers in the residential and commercial sectors, as well as to HVAC contractors.
SIRC Co., Ltd. established in February 2015 and located in Osaka, Japan, is a manufacturer and distributor of SIRC devices. The company's product range includes Power monitors, Power factor monitors, Current monitors, Ultra narrow band filters, and Angle sensors. These products are employed for tasks such as real-time power and angle measurement, and high-frequency current monitoring. Key industries benefiting from these products include the energy sector, robotics, medical equipment manufacturing, and general industrial automation. Additionally, it engages in product development, joint venture initiatives, and delivery of energy-efficient solutions using its SIRC devices.
Richardson RFPD, based in Geneva, Illinois, is an electronic component distributor that became a subsidiary of Arrow Electronics in 2011. The company stocks products such as antennas, power supplies, and ICs, and its engineering team brings together over 600 years of combined design experience in IoT product development, wireless, and RF, making it competent from conception to production. The company is ISO 9001 certified and has three international distribution hubs in Asia, Europe, and North America. It sells products from several brands, including Advanced Thermal Solutions, Empower RF Systems Inc., and Carlisle Interconnect Technologies.
Shenzhen Shengyu Electronics Technology Ltd., founded in 2008 and headquartered in Shenzhen, China, is an electric component distributor that is ISO 9001 certified. The company stocks several components, including switches, capacitors, and resistors, which it sources from multiple manufacturers like Seiko Instruments, Inc., Renesas Electronics America, and Nuvoton Technology Corporation America. Depending on the size and configuration of the customer’s components, the company provides a full range of packaging services. It accepts single or multiple-part quotations, and its website allows customers to search hundreds of products ranging from ICs to computer accessories.
Campbell Scientific Inc., established in 1974 and headquartered in Logan, Utah, is a designer and manufacturer of measurement, data acquisition systems, and data loggers. The company sells sensors, measurement devices, and OEM products for water, weather, and soil applications. It also provides software for several purposes, including communication between data loggers and supporting data logger programming. It is ISO 14001, ISO 9001, and ISO 27001 certified, and it marketed its first product, named the CA-9 Path-Averaging Laser Anemometer, in 1974. It introduced its first data acquisition system, the CR5 Digital Recorder, in 1975.
AutomationDirect.com was founded in 1994 to provide solutions for the industrial automation market and has been growing its list of offerings ever since. AutomationDirects’ extensive catalog includes individual components such as cables, various controls, I/O devices, relays, gauges, fittings, and sensors to complete systems. Many parts and devices, especially PLC units are customizable. AutomationDirect.com also provides support via video instructions, online manuals, a learning library, an active community forum to further assist customers.
United Scale and Engineering Corp., started in 1962 and based in New Berlin, Wisconsin, is a supplier of weighing systems, scales, and balances and is ISO/IEC 17025 accredited. Its products include truck scales, axle weighers, and crane scales, and it stocks products from manufacturers such as A&D Company Limited., Doran Scales Inc., and Cardinal Scale Manufacturing Company. The company offers standard and custom solutions for any weighing need and provides rentals for many sizes and types of scales for short-term project needs. It has full-service centers in Madison, New Berlin, and Green Bay and offers 24/7 emergency services.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Algodue Elettronica s.r.l. |
21.6%
|
| 2 | Setra Systems, Inc. |
5.7%
|
| 3 | Time Mark Corp. |
5.5%
|
| 4 | Crocus Technology |
3.4%
|
| 5 | Red Lion |
2.6%
|
| 6 | LEM International SA |
2.1%
|
| 7 | Grace Technologies |
2.0%
|
| 8 | CSM GmbH |
2.0%
|
| 9 | Nippon Ceramic Co., Ltd. |
1.9%
|
| 10 | Raveon Technologies Corp. |
1.7%
|
Derivation Method
The ranking is calculated based on the click share within the current sensor page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
18 | 34.6% |
|
Japan
|
10 | 19.2% |
|
Germany
|
4 | 7.7% |
|
China
|
4 | 7.7% |
|
Italy
|
3 | 5.8% |
|
Spain
|
3 | 5.8% |
|
Switzerland
|
3 | 5.8% |
|
Belgium
|
1 | 1.9% |
|
Netherlands
|
1 | 1.9% |
|
Taiwan
|
1 | 1.9% |
|
India
|
1 | 1.9% |
|
France
|
1 | 1.9% |
|
Canada
|
1 | 1.9% |
Republic of Korea
|
1 | 1.9% |
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