Water (H2O) can present itself in three different forms: solid (ice), liquid (water), and gas (humidity). Humidity is an invisible gas that can be measured and defined with different parameters. Relative humidity indicates the present state relative to maximum humidity in a given temperature. Dew point temperature indicates the temperature to which air needs to be cooled in order to reach condensation. For industrial-scale manufacturing, controlling these parameters is a must for good quality end-products and efficient manufacturing processes.
Get to know Vaisala’s reliable and durable measurement solutions for humidity, dew point, and moisture.
Humidity
Humidity is measured in many air control applications, where the relative humidity is for the most part over 10 %. Relative humidity (RH) is a measure of the water vapor content of air. For more information, read the article what relative humidity is and why it is important.
Find humidity measurement products by typical applications:
test chambers, building automation and HVAC, spray drying, paint booths, biogas production, and bio-decontamination.
White paper: Controlling high-humidity applications with dew point temperature
This white paper is a vital resource for anyone aiming to maintain a controlled environment in a high-humidity application.
Dew Point
Dew point measurements are needed when controlling air in dry processes, usually with relative humidity below 10 %. For more information about dew point, read the article "What is dew point and how to measure it?". Find dew point measurement products by typical application: compressed air drying, fluid bed drying, 3D printing, lithium-ion battery manufacturing, and semiconductor manufacturing.
Moisture
Avoiding moisture in concrete or structures requires high quality measurement. Moisture measurements are essential also when there is a need to protect engines or to ensure high-quality oil with moisture in oil measurements
Dew point temperature or frost point temperature?
Select the correct parameter output to low humidity applications
Sometimes, the terms are mixed in the industrial language, and dew point temperature might actually refer to frost point temperature.
Read Vaisala's recommendations here (PDF)
Humidity Control in Hazardous Locations
Humidity control is critical in many spaces where flammable or explosive materials such as fuels, chemicals, explosives are being stored. These spaces are designated as hazardous due to potentially explosive atmospheres. They require specially designed and approved instruments for safe operation.
Vaisala's intrinsically safe humidity instrument for hazardous locations is the HMT370EX Humidity and Temperature Transmitter.
High-quality measurement benefits
Energy-savings
End-product quality
Safety & well-being
Vaisala humidity calculator
Relative humidity, absolute humidity, wet-bulb temperature, enthalpy, water concentration, and many more. Humidity calculations and conversions made easy.
Trusted HUMICAP® and DRYCAP® technologies
Humidity and Multigas Measurements with CARBOCAP® and PEROXCAP®
With our continuous research and development efforts, we have been able to combine humidity measurement possibilities also with other parameters and technologies. We developed the CARBOCAP® technology originally for measuring CO2, but the technology is well suited also for optical humidity and methane measurements in biogas applications. Vaisala’s PEROXCAP® technology was developed for measuring humidity, vaporized hydrogen peroxide and temperature for easy validation of hydrogen peroxide bio-decontamination of isolators and facilities.
HUMICAP Humidity and Temperature Probe HMP155
Vaisala’s HUMICAP® Humidity and Temperature Probe HMP155 delivers accuracy and reliability under even the most challenging conditions including tropical, coastal, and marine environments.
The HMP155 is engineered to deliver precise data in high humidity climates where moisture is near saturation, in environments with changing temperatures, and in harsh environments where measurements may be corrupted by chemicals, fog, mist, rain, and heavy dew.
Humidity measurement product highlights for HVAC
Indigo Family - the modular platform
The Vaisala Indigo family is a customizable instrument platform designed to improve process measurements. The Indigo family's key feature is modularity.
Humidity and Temperature Transmitters HMT120/130
The Vaisala HUMICAP® HMT120 and HMT130 transmitters are suitable for cleanrooms, museums, laboratories and data centers.
CO2, Temperature and Humidity Transmitter Series GMW90
The wall-mounted Vaisala GMW90 Series CARBOCAP® Carbon Dioxide, Temperature and Humidity Transmitters are especially suited for green building projects and demand controlled ventilation.
Humidity and Temperature Transmitter Series HMW90
Typical applications are include museums and archives, production and warehouse facilities, data centers, laboratories, and testing environments.
Duct Humidity and Temperature Transmitter HMD60
The sturdy and reliable duct mounted Vaisala HUMICAP® Humidity Transmitter Series HMD60 is designed for monitoring relative humidity in demanding HVAC and light industrial applications
Dew point and relative humidity product highlights for industrial drying
Dew Point Probe DMP6
Vaisala DRYCAP® Dew Point and Temperature Probe DMP6 is designed for in-line humidity measurement in industrial drying applications with very high temperatures and a wide dew point range.
Dew Point and Temperature Probe DMP7
Vaisala DRYCAP® Dew Point and Temperature Probe DMP7 is made for tight spaces and low-humidity applications.
Dew Point and Temperature Probe DMP8
Vaisala DRYCAP® Dew Point and Temperature Probe DMP8 is designed for industrial low-humidity applications with pressure up to 40 bars.
Dew Point Transmitter DMT152
The Vaisala DRYCAP® Dewpoint Transmitter DMT152 is designed for measuring low dew point in OEM applications, even down to -80°C.
Miniature Dew Point Transmitters DMT143 & DMT143L (Long)
Miniature size dew point transmitters DMT143 and DMT143L are ideal choices when you want to measure dew point accurately in small compressed air dryers, plastic dryers, additive manufacturing and other OEM applications.
Humidity and Temperature Probe HMP3
Vaisala HUMICAP® Humidity and Temperature Probe HMP3 is a general-purpose probe designed for processes with moderate humidity and temperature levels.
Relative Humidity and Temperature Probe HMP7
Vaisala HUMICAP® Humidity and Temperature Probe HMP7 is designed for applications which involve constant high humidity or rapid changes in humidity
Relative Humidity and Temperature Probe HMP8
Vaisala HUMICAP® Humidity and Temperature Probe HMP8 is designed for pressurized applications in compressed air systems, refrigerant dryers, and other pressurized industrial applications where easy insertion and removal of the probe and adjustable installation depth into the pipeline are needed.
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Contact us for more info
Interested to learn more about our humidity or dew point measurement offering? Drop us a line, and we'll get back to you.
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