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This section provides an overview for leakage current meters as well as their applications and principles. Also, please take a look at the list of 23 leakage current meter manufacturers and their company rankings. Here are the top-ranked leakage current meter companies as of January, 2025: 1.Educated Design & Development, Inc., 2.Kikusui Electronics Corporation, 3.HIOKI E.E. CORPORATION.
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Categories Related to Leakage Current Meters
A leakage current meter is a device that measures leakage current from electrical equipment. Generally, it is a clamp meter that can measure minute currents of mA or less.
Leakage current meters are used in electrical equipment and medical devices. Generally, they are used to determine whether they conform to the standards outlined in laws and regulations.
Leakage current has a significant impact on the human body, and even a weak leakage current can lead directly to death, so accurate measurement is necessary from a safety perspective. It is also important from the viewpoint of quality because it can cause noise in communication equipment.
Leakage current meters are capable of non-contact measurement with circuit conductors and measure current by clamping a copper wire with a clamp meter.
The principle of current detection is to detect the magnetic field generated by the current and extract an output proportional to the measured current. The most common detection methods include the CT method, Rogowski coil method, Hall element method, and fluxgate method.
The principle of each method is as follows.
This method converts the current to be measured into a secondary current corresponding to the turn ratio.
This method converts the voltage induced in an air-core coil by an alternating magnetic field created around the current to be measured.
This method combines the Hall element and CT methods to measure from DC current.
The Hall element is an element that measures the voltage generated when a current flows through a point where a magnetic field is generated, and this method is the mainstream for DC measurement.
This method combines the fluxgate (FG element) and CT methods to measure DC current.
The fluxgate is an element that measures the magnetic field generated by winding two coils in opposite directions around an iron core and calculates the current value backward from the magnetic field.
The most important feature of a leakage current meter is its resolution.
Ammeters that measure load currents measure large currents of 1A or more in the case of the clamp method. leakage current meters, on the other hand, need to measure weak currents, so they can only measure weak currents of 1A or less.
There are load current meters that measure weak currents for semiconductor manufacturing processes, but for such applications, devices that are connected in series to a circuit are commonly used.
*Including some distributors, etc.
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Educated Design & Development, Inc., founded in 1990, is an American manufacturer based in Cary, North Carolina, specializing in industrial test equipment for product safety applications. The company's portfolio includes dielectric withstand (hipot), ground continuity, impact, and leakage current testers. It also fabricates testing equipment and machinery suited for tasks involving internet protocol (IP) codes, plastics, toys, as well as cords, plugs, and sockets. Moreover, the company extends its offerings to include equipment and machinery for abnormality testing, capacity breaking, and environmental assessments. Some of the company’s notable customers include Amazon.com, Inc., GE Oil & Gas, Tesla, Inc., and Intel Corporation.
Associated Research is a manufacturer of electrical safety products and equipment that was established in Illinois, USA, in 1936 before becoming a brand of the Chinese company Ikonix in 2023. The company’s product lineup includes ground bond testers for measuring resistance of protective ground circuits, hipot testers for dielectric withstand tests in the safety certification process, insulation resistance testers for measuring the resistance of insulating materials for enclosures. The company’s products are commonly used in medical device manufacturing, consumer appliance testing, and electric vehicle production operations.
Ross Engineering Corporation, founded in 1964 and based in Campbell, California, is a manufacturer of a wide range of high-voltage electronic and electro-mechanical devices and is ISO 9001 certified. It stocks over 25 lines of high voltage devices such as voltmeters, relays, and probes used in several fields such as industrial plants, communication transmitters, and power supplies with ranges from 0.01mV to 1,200,000 V. The company is ISO/IEC 17025:2017 certified and has a calibration lab for testing and calibrating dividers, relays, and probes up to 450kV.
Founded in 1940, Kyoritsu has an 80 year history as a customer-focused organization specializing in multimeters. Kyoritsu provides analog multimeters as well as digital multimeters with and without clamps offering many varieties of measurement.
Sivananda Electronics is an ISO 9001:2015 accredited manufacturer of electronics testing equipment. Established in 1970 and based in Maharashtra, India, the company produces various testing and measurement instruments as well as security systems for clients in the nuclear, transportation and information technology sectors. The company's specialized product lineup includes cable fault locators for diagnostic applications, current leakage and million megohm meters for troubleshooting applications, and perimeter security solutions like turnstiles and boom barriers. These supply client companies like Tata Consultancy Services, Infosys Ltd., and the Kudankulam Nuclear Power Plant.
Aarohi Embedded System Pvt. Ltd. was established in 2003 and is a Gujarat-based manufacturer and supplier of testing equipment in various fields. The company offers various products such as Digital Panel Meters, Pump and Motor Testing Equipment, and Electromagnetic Flowmeters, among others. These products, like electromagnetic flowmeters, are used in sectors such as mining and metallurgy, water supply, sewage treatment, port dredging, and hydraulic machinery. The company has been the recipient of many prestigious awards over the years including a Certificate of Appreciation from the GST Department of India in 2021.
KILTER ELECTRONIC INSTITUTE CO.,LTD, established in China in 1993 is a manufacturer of electronic test & measuring instruments used in various industries for accurate measurement, testing, and analysis of electronic components. Their product portfolio includes air ion counters, digital multimeters, clamp meters, current probes, and LCR digital bridges. The company has a R&D center and they export their products worldwide. They also offer customer services that include support, custom research projects and customized services.
Delta United Instrument Co., Ltd., established in 1998 and headquartered in Xindian Dist, New Taipei City, Taiwan, is a manufacturer of testing instruments for the electronics sector. The company offers a wide range of testing instruments, including insulation testers, LCR meters, capacitor leakage current meters, high voltage meters and other power supplies. Using its patented technology and certification, Delta United has been offering dependable custom test solutions. The company's customers include electronics manufacturers, research institutions, and government agencies.
Scope T&M Pvt. Ltd. (ST&M) is an Indian manufacturer of electrical testing and measuring equipment established in 1988 as a subsidiary of the Scope Group of companies. Based in Dadar, Mumbai, the company primarily produces transformer and relay test sets, circuit breaker and power quality analyzers, and cable fault locators. They also offer after-sale calibration services, and accept commissioning of turnkey projects. ST&M serves client companies and OEMs in the power generation, transmission and distribution markets, as well as in the railway and utilities sectors.
KIKUSUI ELECTRONICS CORP., founded in Yokohama, Kanagawa in 1951 is a manufacturer od electronic measuring instruments, electronic loads, and safety test equipment. The company's product portfolio includes Electrical Safety Testers, EMC Testers, Harmonics and Flicker Testers, Battery/Capacitor Testers, and AC Electronic Loads. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company provides services such as Product Selection Guidance, Engineering Support, and Custom Manufacturing.
GW Instek or Good Will Instruments is a Taiwanese instrument maker founded in 1975. GW Instek has over 300 product lines, which include Oscilloscopes, Spectrum Analyzers, Signal Sources, Basic Tests and Measurement Instruments, Safety Monitoring Systems, and more. Leading manufacturers choose them as their test and measurement provider. GW Instek has become the leading brand in the electronic test and measurement industry. They help electronic industries reduce testing costs and increase competitiveness. GW Instek has subsidiaries in five countries and is sold to more than 80. Their mission is to reduce total costs and create customers value from cost savings.
Doble Services founded in 1920, headquartered in Marlborough, MA, and a part of ESCO Technologies, is a manufacturer and supplier of testing solutions and diagnostic systems. The company’s product portfolio includes Enterprise Management, High Power Test Systems, In-Service Testing & Management, and Oil Systems. Their product, such as Calisto T1 assesses bushings, partial discharge, and input/output modules from one unit, making the process cost-effective. The company also provides clients with high-level, data governance project management supervisory services to reinforce good data management practices.
Hubbell Power Systems Inc. a company established in 1994 and based in Shelton, Connecticut is a manufacturer and supplier of lighting, electronic, and datacom devices and solutions. The company also provides tailored solutions for energy saving, extreme environment, wire and cable management, and foundation repair among others. The products such as chandeliers, address lights, LED lights, and wall mounts are used in Indoor and Outdoor residential lighting. The company was hailed as the World’s Most Ethical Company in 2023.
Kaise Corporation, established in 1955 and headquartered in Ueda City, Nagano Prefecture, Japan, is a manufacturer and supplier of electronic measuring instruments. Its product lineup includes battery checkers, jump starters, code readers, as well as oscilloscopes, and circuit testers, primarily used in automotive maintenance. Additionally, the company offers digital multimeters, clamp meters, and insulation resistance meters. Its SK-8550 Battery Checker received the 2016 Maintenance Support Award at the Automotive Newspaper Accessories Awards.
MEWOI ELECTRONICS CO., established in 2006 and based in Guangzhou City, China, is a manufacturer and supplier specializing in testing instruments. The company's product portfolio includes insulation resistance testers, battery internal resistance voltage testers, and AC leakage current sensors. These products are used in various industries, including industrial manufacturing, telecommunications, and the power and electrical industry. The company offers services including technical support, customization of parameters according to customer requirements, and fast delivery to reduce capital costs.
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.
Hioki E.E. Corporation was founded in 1935 and headquartered in Ueda, Nagano. Hioki provides testing & analysis, manufacturing & inspection, and equipment maintenance to industries including mobility, battery, motor, energy, electronic components, and infrastructure. Hioki’s has 10 primary product categories which are: recorders and data loggers including oscilloscopes, LCR/Resistance Meters, safety testing including signal generators and calibrators, power meters including power quality analyzers, probes & sensors, optical & PV maintenance & telecommunication, environmental measuring, DMM & testers & field measuring, IoT & new solutions & meter relay, and bare board & package testing.
Gao Tek Inc., started in 2001, and headquartered in Manhattan, New York, is a supplier of test and measurement equipment like embedded development tools, electronic measurement instruments, and telecommunication testers. The company is a B2B tech supplier that also stocks drone products, commercial gas detectors, and transceivers and is incorporated in the USA and Canada. It provides a one-year product warranty against defective material or workmanship and offers overnight delivery in the continental USA and Canada. It is a member of the GAO group and has served customers in over 50 countries worldwide.
Shanghai Yihua V&A Instrument Co Ltd., established in Hong Kong in 1970, is a B2B platform that supplies trade shows, online marketplaces, magazines, and sourcing apps. Their product portfolio includes e-commerce conferences, China sourcing directories, Online supplier directories, e-Magazines, and trade shows. Their products help suppliers and buyers to get market insight and market data. The company has 10 million registered buyers and users worldwide. In 1995 the company launched Asia's first international trade website, Asian Sources Online and in 2000 they were listed on NASDAQ.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Educated Design & Development, Inc. |
9.8%
|
| 2 | HIOKI E.E. CORPORATION |
9.8%
|
| 3 | Kikusui Electronics Corporation |
7.3%
|
| 4 | Associated Research |
6.5%
|
| 5 | Sivananda Electronics. |
6.5%
|
| 6 | ESCO Technologies Company |
6.5%
|
| 7 | Aarohi Embedded System Pvt. Ltd. |
6.5%
|
| 8 | SCOPE T&M |
6.5%
|
| 9 | ChenYang-Technologies GmbH & Co. KG |
4.9%
|
| 10 | Delta United Instrument Co.,Ltd. |
4.9%
|
Derivation Method
The ranking is calculated based on the click share within the leakage current meter page as of January 2025. 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 (%) |
|---|---|---|
|
Japan
|
6 | 31.6% |
|
India
|
4 | 21.1% |
|
United States of America
|
3 | 15.8% |
|
China
|
3 | 15.8% |
|
Taiwan
|
2 | 10.5% |
Germany
|
1 | 5.3% |
35 products found
35 products
Kowa Keiso Co., Ltd.
240+ people viewing
Last viewed: 14 hours ago
■Summary Leakage current and ground wire resistance of ME equipment can be measured with this one device. It is possible to measure leakage current...
YASUNAGA CORPORATION
150+ people viewing
Last viewed: 11 hours ago
Standard Response
■We propose optimal solutions for automation and labor saving. Yasunaga's machinery equipment business began with processing machines for sewing ma...
Sanwa Electric Meter Co., Ltd.
70+ people viewing
Last viewed: 5 hours ago
■Equipped with a switchable bandpass filter for 50Hz/60Hz frequency band ・Safety design that complies with IEC61010 CAT.Ⅲ600V ・Equipped with a ba...
Yagyu Shokai Co., Ltd.
100+ people viewing
Last viewed: 2 hours ago
Very Fast Response
■Features Although it is small, it is an effective value (RMS) type that can measure a wide range of up to 400A AC/DC. - Suitable for current manag...
Yagyu Shokai Co., Ltd.
90+ people viewing
Last viewed: 21 hours ago
Very Fast Response
■Features - Thin design makes it easy to clamp intricate wiring. - Drop-proof type that can withstand drops of 1m. ・CM3289 can accurately measure ...
Yagyu Shokai Co., Ltd.
70+ people viewing
Last viewed: 14 hours ago
Very Fast Response
■Features -By setting to statistical value recording mode, instantaneous/ACX/MIN/mmVE values can be recorded at set recording intervals (2 second...
Yagyu Shokai Co., Ltd.
80+ people viewing
Last viewed: 1 hour ago
Very Fast Response
■Features - Can be directly connected to a computer, making data transfer and retrieval easy. - Light and compact, convenient to carry. ■ Specific...
Soki Co., Ltd.
300+ people viewing
Last viewed: 5 hours ago
Fast Response
5.0 Company Review
This is an effective value type AC flexible clamp. ■Features ・Use of flexible and lightweight sensor ・Can measure up to AC3000A (true effective ...
Soki Co., Ltd.
350+ people viewing
Last viewed: 14 hours ago
Fast Response
5.0 Company Review
This is a leak clamp meter that can accurately detect minute leakage currents with a newly designed sensor. ■Features ・Accurately detect minute l...
Custom Co., Ltd.
290+ people viewing
Last viewed: 3 hours ago
Standard Response
4.0 Company Review
■ A clamp meter that can measure AC current and DC current. ・ Measurement of rush current is possible. It is possible to measure large current tha...
Amic Co., Ltd.
170+ people viewing
Last viewed: 14 hours ago
Standard Response
High-speed measurement and determination of electrolytic capacitor leakage current ■Features ・Measurement range: 0.0nA to 299.99mA ・Contact chec...
Custom Co., Ltd.
260+ people viewing
Last viewed: 14 hours ago
Standard Response
4.0 Company Review
■ Auto function model of current, voltage, and resistance. 3 roles of clamp meters, testa, and power samples ・ In addition to the AC clamp functio...
Custom Co., Ltd.
260+ people viewing
Last viewed: 14 hours ago
Standard Response
4.0 Company Review
The current value can be measured simply by pinching it without cutting the circuit. A clamp meter that can check the voltage, resistance, conduct...
Custom Co., Ltd.
280+ people viewing
Last viewed: 14 hours ago
Standard Response
4.0 Company Review
■ Basic AC clamp meter. ・ Equipped with a data hold function that allows you to fix the changing values and display it, and a MAX hold function ...
Custom Co., Ltd.
250+ people viewing
Last viewed: 14 hours ago
Standard Response
4.0 Company Review
■ It can be easily measured even in narrow places with a cable that can freely change the shape. -The real effective value (True RMS) method can di...
Sanwa Electric Meter Co., Ltd.
70+ people viewing
Last viewed: 13 hours ago
■Easy insulation management under live wire conditions. Ior leak clamp that can also measure load current ・Measure resistance leakage current (Ior...
A and Day Co., Ltd.
430+ people viewing
Last viewed: 14 hours ago
Standard Response
A clamp meter that can measure current while the circuit is still energized without disconnecting it.
4 models listed
Goodman Co., Ltd.
60+ people viewing
Last viewed: 21 hours ago
Standard Response
Detects disconnections and leakage points in buried communication and power cables ■Product features ・Quick pinpoint detection of high resistance...
TEXIO TECHNOLOGY CORPORATION
60+ people viewing
Last viewed: 21 hours ago
Standard Response
■Measure leakage current to ensure the safety of electrical and electronic devices GLC-10000 is a tester that measures leakage current of electrica...
T&M Corporation Co., Ltd.
70+ people viewing
Last viewed: 21 hours ago
■Product specifications: Range: 100KΩ–10TΩ, test voltage: 1V-1,000V, 4.3-inch touchscreen, program control ■Product introduction With a touch-enab...
T&M Corporation Co., Ltd.
80+ people viewing
Last viewed: 21 hours ago
■Product specifications: Range: 100KΩ–5TΩ, test voltage: 1V-500V, 4.3 inch touch screen, program control ■Product introduction With a touch-enable...
Sanwa Electric Meter Co., Ltd.
50+ people viewing
Last viewed: 16 hours ago
■High-performance I0R logger that supports two measurement modes ・Supports detection of insulation deterioration of equipment such as motors on th...
Marvel Co., Ltd.
120+ people viewing
Last viewed: 14 hours ago
■In addition to current measurement, voltage measurement, resistance measurement, and continuity check are all possible with one device. ・Pocket s...
20+ people viewing
Last viewed: 8 hours ago
■Features ・High-speed measurement and determination of leakage current of electrolytic capacitors ・Measurement range: 0.0nA to 299.99mA ・Contact...
20+ people viewing
Measuring leakage current (touch current) is the basis for evaluating the safety of many electronic devices. overview ■There is leakage current in...
A-Gas Japan Co., Ltd.
90+ people viewing
Last viewed: 4 hours ago
■Features ・High precision type with resolution 10μA (AC) -Equipped with LED backlight, making it easy to read even in dark places ・Multi-function...
A-Gas Japan Co., Ltd.
120+ people viewing
Last viewed: 21 hours ago
■Features ・Measurement is possible even in difficult-to-measure places ・Backlight function
2 models listed
A-Gas Japan Co., Ltd.
110+ people viewing
Last viewed: 21 hours ago
■Features Low cost type clamp meter
