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This section provides an overview for hydraulic data loggers as well as their applications and principles. Also, please take a look at the list of 4 hydraulic data logger manufacturers and their company rankings. Here are the top-ranked hydraulic data logger companies as of January, 2025: 1.Graphtech Co., Ltd., 2.Testo SE & Co. KGaA, 3.Hydrotechnik UK Ltd.
Table of Contents
A humidity logger is a device that records humidity at user-specified regular intervals and analyzes the measured data.
The relative humidity unit (relative humidity) is expressed as %RH.
Relative humidity is the moisture content of air at a given temperature compared to the maximum moisture content of air (saturated water vapor).
Relative humidity (%RH) = water vapor content/saturation water vapor content x 100.
Temperature and humidity are usually measured as a set due to the close relationship between temperature and humidity.
The lower the temperature, the less water vapor can be contained in the air. Likewise, the higher the temperature, the more water vapor can be contained.
Humidity is an important item in quality control.
Humidity loggers are used for humidity control, which is one of the requirements of the ISO 9001 quality management system.
They are used for temperature and humidity control in museums to prevent mold formation due to high temperature and humidity and damage to works of art due to dryness.
Suitable for temperature and humidity control in warehouses, logistics, hospital environments, civil engineering and construction, and vinyl greenhouses.
There is a wide range of equipment types, including separate sensor types, sensor-integrated types, analog types that constantly record on paper, and multi-loggers for multi-point measurement.
Humidity loggers are classified into two types: electrical resistance and capacitance.
The electrical resistance and capacitance types use a moisture-sensitive material that absorbs and dehumidifies moisture and is sandwiched between electrodes.
The capacitance type is the mainstream, can measure humidity even at 20% or less, and has the advantage of a fast response time.
The electrical resistance type is resistant to noise, and the sensor part can be smaller.
Hydraulic data loggers have made it possible to take long-term measurements at user-specified intervals and, depending on the device, to take simultaneous measurements at multiple points or over a wide area simultaneously via wireless communication.
Simultaneous measurement of recorded humidity and temperature, and even impact degree depending on the device, is now possible. Anyone can easily measure and analyze the data on a PC application.
Constant wireless monitoring is especially suitable for preserving artworks and optimizing the environment.
High temperature and humidity can cause damage and deterioration of artwork, so environmental control is essential. The previous analog Hydraulic data logger has been replaced by a wireless Hydraulic data logger, which eliminates the time and effort of opening the display case to collect data. Most importantly, it eliminates environmental changes inside the case.
*Including some distributors, etc.
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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.
Webtec Products Limited, founded in 1964 and based in St. Ives, Cambridgeshire, UK, is a manufacturer of hydraulic measurement and control products. The company manufactures hydraulic control valves, portable hydraulic testers, hydraulic dataloggers, and devices for mobile and industrial condition monitoring. The company also specializes in customizing the design of valves and switches, for different industrial setups. These products are used in diverse sectors like agriculture, aerospace, CNC manufacturing, military, and communication. The company is a member of the National Fluid Power Association and is ISO900-certified by NQA.
Hydrotechnik UK Ltd, based in Nottingham, United Kingdom and founded in 1990 is a manufacturer and distributor of testing and measurement equipment. The company manufactures and supplies machines for minimise and analogue tests, dataloggers and digital tests, watchlog USB and Bluetooth wireless tests, sensors for pressure and temperature. The measurement sensors are easy to install and record and give accurate and precise measurements. The products are used by diverse sectors like communication, industries, defence, aerospace and energy. The remote and wireless monitoring systems designed and manufactured by this company are used in different industrial setups.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Webtec Products Limited |
27.3%
|
| 2 | Hydrotechnik UK Ltd |
27.3%
|
| 3 | Graphtech Co., Ltd. |
27.3%
|
| 4 | Testo SE & Co. KGaA |
18.2%
|
Derivation Method
The ranking is calculated based on the click share within the hydraulic data 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.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United Kingdom
|
2 | 50.0% |
|
Germany
|
1 | 25.0% |
Japan
|
1 | 25.0% |
43 products found
43 products
Hosansho Co., Ltd.
260+ people viewing
Last viewed: 1 hour ago
Standard Response
■Product overview ・A temperature and humidity sensor is mounted on the tip of the FPC cable, making it convenient for measuring inside the housing...
2 models listed
Kazuki Research Institute
410+ people viewing
Last viewed: 11 hours ago
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Soki Co., Ltd.
340+ people viewing
Last viewed: 1 hour ago
Fast Response
5.0 Company Review
■Features We are selling a data logger that can record measured values of temperature, humidity, and atmospheric pressure, and a data logger temp...
Soki Co., Ltd.
270+ people viewing
Last viewed: 19 hours ago
Fast Response
5.0 Company Review
■Features We are selling a temperature/humidity data logger (recorder) f heat stroke index meter/heat stroke index monitor AD-5696 that can easily ...
Kazuki Research Institute
410+ people viewing
Last viewed: 1 hour ago
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Custom Co., Ltd.
290+ people viewing
Last viewed: 3 hours ago
Standard Response
4.0 Company Review
A logger that can use temperature record data on a PC ■ SD card temperature logger that can connect 4 thermoelectric sensors and platinum measurem...
Kazuki Research Institute
280+ people viewing
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Soki Co., Ltd.
310+ people viewing
Last viewed: 18 hours ago
Fast Response
5.0 Company Review
■Features We are selling the testo 184H1 temperature and humidity data logger that monitors the temperature and humidity during transportation of p...
Ymatic Co., Ltd.
80+ people viewing
■Product overview ・Multi-channel compact logger compatible with digital temperature/humidity sensor cable/analog input ・Measurement can be perfor...
Kazuki Research Institute
370+ people viewing
Last viewed: 3 hours ago
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Kazuki Research Institute
290+ people viewing
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Kazuki Research Institute
480+ people viewing
Last viewed: 3 hours ago
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Kazuki Research Institute
420+ people viewing
Last viewed: 3 hours ago
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Kazuki Research Institute
380+ people viewing
Last viewed: 2 hours ago
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Kazuki Research Institute
530+ people viewing
Last viewed: 3 hours ago
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Kazuki Research Institute
350+ people viewing
Last viewed: 9 hours ago
Very Fast Response
■ 5 sensor correspondence: 3 -axis acceleration (vibration/impact), temperature, humidity, pressure, light selection ■ Ultra -small/lightweight: mi...
Sato Keiryoki Mfg. Co., Ltd
80+ people viewing
Last viewed: 21 hours ago
Fast Response
Memory meter "SK-L750 series" temperature/humidity type indicator only. A temperature/humidity logger that stores measurement data. It can store u...
Graphtech Co., Ltd.
290+ people viewing
Last viewed: 1 day ago
Standard Response
■ Temperature type type Pocket size data logger GL10-TH The GL10-TH is a data logger that can measure the temperature and humidity simultaneously s...
A and Day Co., Ltd.
430+ people viewing
Last viewed: 11 hours ago
Standard Response
For temperature and humidity control in various fields such as physical chemistry and analysis fields, medical specimens, pharmaceuticals, food hyg...
3 models listed
Custom Co., Ltd.
250+ people viewing
Last viewed: 2 hours ago
Standard Response
4.0 Company Review
A product that warns that temperature and humidity measure an environment where heat stroke is likely to occur. Portable type lineup. ■ A black bu...
Fluke Calibration
50+ people viewing
Last viewed: 10 hours ago
■The most accurate temperature and humidity graphic data logger on the market The DewK thermohygrometer measures temperature to ±0.125 °C and humid...
