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This section provides an overview for temperature and humidity loggers as well as their applications and principles. Also, please take a look at the list of 29 temperature and humidity logger manufacturers and their company rankings. Here are the top-ranked temperature and humidity logger companies as of January, 2025: 1.T&D, 2.Dataq Instruments Inc., 3.CE-TEST & MEASUREMENT S PTE LTD.
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Categories Related to Temperature and Humidity Loggers
A temperature and humidity data logger is a device that automatically measures the temperature and humidity of an installation location and continuously records them at regular intervals.
The measurement interval can be changed arbitrarily, and they are used to guarantee the transportation environment, predict the risk of mold and bacteria by monitoring the temperature and humidity in freezers and refrigerators, and determine the comfort of the workforce.
Temperature and humidity loggers are widely used in any location where temperature and humidity control must be guaranteed. Major applications include the following locations:
The temperature and humidity data logger consists of a temperature and humidity sensor and a memory and battery for data storage.
The temperature sensor is a thermistor, also known as an NTC thermistor. As the temperature rises, the resistance decreases as current flows through it easily. Thus, changes in temperature change electrical resistance, and this property is used to measure temperature.
Humidity sensors are classified into two types: electrical resistance type and capacitance type. Both the electrical resistance and capacitance types have a structure in which a moisture-sensitive material that absorbs and dehumidifies moisture is sandwiched between electrodes, and the method differs depending on whether moisture is measured as electrical resistance or capacitance.
The capacitance type is the mainstream, and can measure humidity even at 20% or lower, and has the advantage of fast response time. The electric resistance type is resistant to noise, and the sensor part can be made smaller.
There are various models of temperature and humidity loggers, and it is important to choose the right one according to whether it has a display, sensor type, data extraction method, and operating environment. The main points to consider when selecting a logger are as follows
No Display or Buttons
This type of sensor specializes in storing temperature and humidity data. All operations are performed through the computer. Since there are no buttons on the main unit, there is a small risk of data deletion by inexperienced personnel.
With Display and Buttons
This type allows the user to visually check the measured data. This provides peace of mind because you can check whether the system is working properly. Also, since the start and pause of measurement can be done at hand, temperature and humidity are not recorded in vain from the measurement point to the place where the data is retrieved.
Sensor Integrated Type
The sensor is attached to the main unit. Since there are no cables, the risk of wire breakage is low and the sensor is not easily broken.
Cable Sensor Type
The sensor can be extended from the main unit, so it can be inserted into a narrow space. This type is used to measure temperature and humidity in places where the main unit cannot be placed due to high temperature and humidity, or in confined spaces.
Constant Communication Type
This type can constantly manage data using wireless LAN or Bluetooth. This type is useful in places where temperature monitoring is required.
Extraction Type
Data is collected for a certain period of time and then extracted, which is used when strict data assurance is required, such as in FDA, GMP, HACCP, and ISO9001 quality management systems. Data extraction is not limited to PCs; devices that can be used with smartphones and tablets are also available.
High-Precision Type
These temperature and humidity loggers are designed for use in harsh environments. This type of temperature and humidity logger is covered with stainless steel and can measure high temperatures.
Waterproof Type
This type is used outdoors. They do not malfunction even if it rains and can be used with peace of mind.
Calibration Type
Periodic configuration is required for measurements compliant with various plans such as GMP, HACCP, and ISO. The manufacturer can undertake calibration, but the manufacturer's calibrated product may be used as a secondary standard.
Temperature and humidity are usually closely related. The lower the temperature, the less water vapor can be contained in the air; conversely, the higher the temperature, the more water vapor can be contained. This allows us to determine the risk of condensation and the risk of mold growth.
It also affects human senses, such as feeling comfortable if the humidity is low even if the temperature is high. For this reason, temperature and humidity loggers are used for a variety of purposes, including occupational health and comfort management in stores.
*Including some distributors, etc.
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PTC Instruments, established in 1946 and based in Los Angeles, CA, is the largest manufacturer of durometers and surface thermometers in the world. The thermometers are handmade from quality materials in Los Angeles factory and used worldwide. PTC Metrology offers NIST-traceable calibration and certification services. The company is accredited by A2LA to ISO/IEC 17025:2017. The company’s practical training cuffs are used by all branches of the U.S. government, as well as several private training centres, police academies, and the Department of Corrections.
Summit Technology, established in 1992 with headquarters in the UK, is a manufacturer of its own PowerSight-branded power analyzers and accessories. The company's products include current probes, voltage probes, power analyzers, and Powersight Manager software that allows for project management, remote control, and report writing for all PowerSight analyzers. PowerSight products are available for consumer purchase from the PowerSight online store. The company also offers customers services that include repairs, warranties, rentals, and training.
Onset Computer is a manufacturer of data loggers and monitoring solutions, established in 1981 and headquartered in Bourne, Massachusetts, USA. Their product lineup includes data loggers for indoor and outdoor monitoring of temperature, humidity, light intensity, and other parameters. They also provide data loggers for pharmaceutical storage monitoring. These products are accompanied by a software product specifically developed to enhance data collection, monitoring, communication, and analysis in order to optimize these processes. Onset Computer is ISO 9001:2015 certified for its quality management systems.
OMEGA Engineering Inc., founded in Norwalk, CT, in 1962 is a manufacturer of products used to measure temperature and humidity, flow and level, and pressure. The company's product portfolio includes thermocouple probes and assemblies, pressure gauges and switches, and air velocity measurement systems, wireless systems and portable optic sensors. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company also offers customer services that include support, custom research projects and customized services.
Madge Tech Inc., founded in 1996 and located in Warner, New Hampshire, is a manufacturer of data loggers. The company offers a range of products that include parameters, internal semiconductors, RTD probes, thermistor probes, and thermocouple probes. These data loggers find use in industries such as pharmaceuticals, agriculture, manufacturing, research, and industrial processes. The company’s products are used for precise monitoring and recording of environmental conditions and specific parameters for quality control and compliance purposes and have acquired ISO 9001:2015 certification.
CAS DataLoggers is a manufacturer and distributor of data loggers, data acquisition equipment, temperature monitoring systems, sensors, data loggers and paperless recorders. It was founded in 2001 with it headquarter in USA. The company offer a wide range of data logger products and services, including temperature and humidity monitoring, voltage and current recording, environmental monitoring, and more. The company provides ingenious and credible data acquisition solutions to a wide range of industries including automotive, aerospace, manufacturing, energy, and environmental monitoring.
CPS Products, Inc. was founded in 1989 and is headquartered in Hialeah, Florida, USA. A company that specializes in the design, manufacture, and distribution of tools, equipment, and instruments for the HVAC/R (heating, ventilation, air conditioning, and refrigeration) industry. CPS Products, Inc. offers products, including refrigerant leak detectors, vacuum pumps, recovery machines, gauges, and other HVAC/R tools and equipment. Their products are designed to HVAC/R technicians and professionals in the automotive, residential, commercial, and industrial sectors. The company has a global presence, with distribution centers located in the United States, Europe, and Asia.
Dataq Instruments Inc., founded in the United States in 1984, is a supplier of hardware and software products that enable personal computers to make measurements. The company's product portfolio includes a range of precision measurement devices, sensors, and instruments that can connect seamlessly to personal computers, expanding their capabilities and software solutions offering intuitive interfaces for data collection, analysis, and visualization, making measurement tasks more accessible. It serves markets including manufacturing, research and develeopment and IT.
Rotronic is a manufacturer of measurement and monitoring solutions, founded in 1965, and headquartered in Zurich, Switzerland. They offer a wide range of measurement instruments that is specialized in relative humidity, temperature, carbon dioxide, differential pressure, and water activity. Rotronic also offers software and systems for data logging, analysis, and monitoring. These solutions cater to industries where precise measurement and monitoring are essential for maintaining product quality, regulatory compliance, and operational efficiency.
Tempcon Instrumentation Ltd, founded in the UK in 1980 is a manufacturer of instrumentation and sensors (probes) for measuring, controlling, and logging temperature, humidity, pressure, and water level. The company offers a wide variety of sensors and probes, designed for applications such as temperature measurement, humidity monitoring, pressure sensing, and much more, line of data loggers for recording and storing data from various sensors and control systems are tailored to suit different industries, offering precise control and automation solutions to enhance operational efficie
COMET SYSTEM, s.r.o, established in 1991 and based in Czechia, is a manufacturer of computerized measuring devices. The company also produces products such as IoT sensors, GSM loggers, accurate ethernet sensors, and hand-held multichannel measuring systems. Besides this, the company also manufactures data acquisition systems, portable thermometers, hygrometers, and barometers and has instruments to measure and monitor environmental conditions. The instruments will have traceable calibration certificates designed according to the EN ISO/IEC 17025 standards.
Electronic Temperature Instruments (ETI) Ltd., established in 1983 and headquartered in West Sussex, England, is a manufacturer of digital thermometers. The company offers a range of products including thermometers, data loggers, probes and accessories, calibration equipment, cooking and BBQ tools, and more. It also offers moisture meters, pH meters, pressure meters, electrical testers, and gas detectors. The company is certified with the ETL Listed Mark, which is proof of product compliance with North American safety standards. It serves industries such as the food industry, industrial and manufacturing, healthcare, environmental monitoring, and more.
Established in 2006, Testo India Pvt. Ltd., a Pune, India-based subsidiary of Testo SE & Co. KGaA, is a manufacturer and supplier specializing in measuring instruments. Complying with the ISO/IEC 17025:2017 standard set by the National Accreditation Board for Testing and Calibration Laboratories (NABL), the company produces measuring instruments for temperature, humidity, pressure, and flow (bulk fluid movement). The company also offers electrical, sound level, and nanoparticle measuring devices. These products are designed for industrial applications with regard to heating, ventilation, air conditioning, and refrigeration (HVAC-R), as well as environmental monitoring technology, in sectors like food service, retail, and pharmaceuticals.
Lascar Electronics Ltd, founded in 1977, is a British manufacturer and supplier headquartered in Salisbury, Wiltshire, specializing in remote sensing and data storage products. Since introducing the first USB data loggers, the company has expanded its product line to include a range of USB, WiFi, and wireless data loggers branded as EasyLog. These devices are used in measuring and monitoring, particularly in cold chain management for food, pharmaceuticals, and vaccines. The company also offers an array of sensors for temperature and humidity monitoring, leak detection, and more. Additionally, the company provides digital panel meters catering to sensing, processing, and automation applications.
Vaisala, established in 1936 in Finland, is a technology company that is a manufacturer of electronic measurement systems and equipment for meteorology, environmental sciences, traffic safety, and industry worldwide. The Company's products include radiosondes, barometric pressure measurements, weather stations, lighting detection systems, and moisture measurement solutions. Vaisala also sells a large selection of its products directly to consumers via the company's online store. The company also provides commercial clients with the XWeather subscription service, which offers numerous options for industrial-grade environmental measurement.
T&D Corporation, headquartered in Matsumoto, Japan, has been a manufacturer of data loggers that provide accessible data since 1986. They offer a wide range of products that enable monitoring and recording of environmental parameters. Their product lineup includes temperature loggers, humidity loggers, voltage loggers, current loggers, and pressure loggers. These provide valuable data for analysis and decision-making in diverse applications such as food storage, pharmaceuticals, environmental monitoring, and energy management. T&D Corporation also offers software and apps to complement their data loggers for data management, visualization, and remote access.
Signatrol, a company founded in 1994 and headquartered in Tewkesbury, England, is a manufacturer and supplier specializing in data loggers and logging systems. The company's product portfolio includes temperature data loggers, WiFi data loggers, USB data loggers, humidity data loggers, and process signal data loggers. These products are used in various industries, including pharmaceuticals, logistics, medical, agriculture, and the food and beverage industry. The company also offers services, including technical support and calibration services. The company is ISO 9001:2015 certified for its quality management system.
Instrument Choice, founded in 2007 and headquartered in Adelaide, Australia, is a manufacturer and supplier of temperature and humidity data loggers. The company provides environment & scientific test instruments and meters & data loggers. These products are used for measuring air speed, air flow, humidity, and other environmental factors. It also provides many case studies to help customers find a suitable product for the required application. The company has won the Telstra Australian Business Awards and Customer Service Award.
Proges Plus, established in 1985 and headquartered in Willems, Nord-Pas-de-Calais, France, is a service provider offering three activities, including synoptic ERP editor and integrator, blue serve, and plug & track. The company’s Synoptic ERP editor and integrator category specializes in editing and integrating Synoptic ERP. Its blue serve category offers network management, virtualization, security solutions, and web development services. The plug-and-track category offers temperature sensors and data loggers designed for quality control and traceability. It has three branches in France, situated in Lille, Lyon, and Nantes, and one in Quebec, located in Montreal.
NOVUS Automation Inc., founded in 1982, is a manufacturing company developing products for data acquisition, temperature and process control, signal conditioning and transmission of field variables based in Brazil. The company complys with worldwide quality requirements providing solutions that exceed customers’ expectations. It is present in over 60 countries through a network of over 300 distributors and its own sales offices in Brazil, Argentina, the US and France. In 2018, it moved into its new headquarter facilities in the city of Canoas, with more than 5000 square meters of built area, the new plant ensures the possibility to quadruplicate production capability.
ATP Instrumentation Ltd., founded in 1989 and headquartered in Ashby De La Zouch, Leicestershire, United Kingdom, is a distributor and supplier of testing, measurement, and analysis instruments. The company stocks a massive range of handheld digital measuring devices and testers, including anemometers, light meters, and moisture meters. It also offers an extensive range of visual inspection equipment and thermal imaging devices. These products have applications that include quality control, scientific research, as well as being used in everyday industrial tasks. The company offers free technical advice and product support, as well as a suite of calibration services.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | T&D |
8.6%
|
| 2 | Dataq Instruments Inc. |
6.9%
|
| 3 | CE-TEST & MEASUREMENT S PTE LTD |
6.9%
|
| 4 | PTC Instruments |
6.9%
|
| 5 | Tempcon Instrumentation Ltd |
6.0%
|
| 6 | Madge Tech Inc. |
5.2%
|
| 7 | Proges Plus |
4.3%
|
| 8 | Electronic Temperature Instruments Ltd. |
4.3%
|
| 9 | Summit Technology |
4.3%
|
| 10 | Omega Engineering, Inc. |
4.3%
|
Derivation Method
The ranking is calculated based on the click share within the temperature and humidity logger 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 (%) |
|---|---|---|
|
United States of America
|
9 | 36.0% |
|
United Kingdom
|
7 | 28.0% |
|
Switzerland
|
1 | 4.0% |
Japan
|
1 | 4.0% |
|
Czech Republic
|
1 | 4.0% |
|
Germany
|
1 | 4.0% |
India
|
1 | 4.0% |
Singapore
|
1 | 4.0% |
|
France
|
1 | 4.0% |
Australia
|
1 | 4.0% |
|
Brazil
|
1 | 4.0% |
89 products found - Page 3
89 products - Page 3
PST Japan Co., Ltd.
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