We provide products to monitor temperature and humidity conditions in research and development, manufacturing and storage environments. With our solutions and services, companies in the pharmaceutical and biotechnology world guarantee the quality and safety of their products and maintain compliance with global regulations. Vaisala offers products necessary for monitoring temperature, humidity, hydrogen peroxide and CO2.
Portable Temperature and Humidity Meters
Hand-Held Humidity and Temperature Meter HM40

Hand-Held Humidity and Temperature Meter HM40
Compact, portable, and easy-to-use Vaisala HUMICAP® HM40 handheld humidity meter is designed for spot-checking in a wide variety of environments. It provides reliable measurements in a wide range of applications. It is the ideal spot-checking tool for everything from structural moisture measurement and air conditioning systems to humidity measurement in industrial production processes and life science applications. There are four different models available: HM41, HM42, HM45, and HM46.
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Handheld Humidity and Temperature Meter HM70

Handheld Humidity and Temperature Meter HM70
Vaisala HUMICAP® HM70 Handheld is designed for demanding humidity measurement in spot-checking applications. It is also ideal for field checking and calibration of Vaisala’s fixed humidity instruments.
The HM70 includes an MI70 indicator and an optional probe depending on the application.
- HMP75 with standard plastic grid
- HMP75B (chemical purge and sensor preheating)
- HMP76 with standard sintered bronze filter
- HMP76B (chemical purge and sensor preheating)
- HMP77 with standard plastic grid and stainless steel netting
- HMP77B (chemical purge and sensor preheating)
The optional MI70 Link Windows® software in combination with a USB connection cable is used to transfer logged data and real time measurement data from the HM70 to a PC.
- RH measurement range 0…100 % RH
- 3 probes, temperature measurement ranges between -70 and +180 °C
- Multiprobe operation; dewpoint and CO2 probes can also be connected
- Displays various humidity parameters
- Sensor preheat and chemical purge options for demanding conditions
- Traceable calibration (certificate included)
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Handheld Moisture and Temperature Meter for spot-checking in oil MM70

Handheld Moisture and Temperature Meter for spot-checking in oil MM70
Reliable MM70 is an ideal tool for the preventive maintenance of oil-filled systems. The water activity measurement indicates the margin to free water formation, which causes severe problems in lubrication systems. Excellent pressure and temperature tolerance. The probe can be inserted directly into the process pipe through a ball valve without draining the oil in the system.
The MM70 also supports the use of Vaisala’s humidity, dew point, and carbon dioxide probes, making it a versatile investment applicable to several multi-parameter applications. Two probes can simultaneously be connected to the MM70.
The optional MI70 Link Windows® software in combination with a USB connection cable is used to transfer logged data and real time measurement data from the MM70 to a PC.
For more information:
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