HVAC Measurement Vaisala offers industry benchmark HVAC (Heating, Ventilation and Air-Conditioning) meters, sensors and transmitters for measuring humidity, temperature, and carbon dioxide both indoors and outdoors. View all HVAC sensors and detectors Vaisala's reliable and accurate HVAC meters and sensors are designed with energy efficiency in mind, whether you are optimizing cooling towers or demand-controlled ventilation. Our large selection includes ±3% and ±2% humidity and temperature measurement HVAC meters, CO2 measurement sensors and also handheld meters. They can be used indoors and outdoors, and installed on walls or in ventilation ducts. To see where our HVAC sensors can be used, enter the Vaisala HVAC House or view all our HVAC sensors at a glance. Enter Vaisala HVAC House Why Choose Vaisala? Infosys, the second largest Indian IT-consulting company with 200,000 plus employees and revenue of over USD 10 billion, chose Vaisala’s HVAC sensors for its projects. “We find that Vaisala is unique with the 5-year stability specification for the HVAC products. In the last 3 years we have been using the products, we have received timely support from Vaisala and are quite satisfied with the product quality”, says Mr. Vikas Makkar, Regional Manager Infrastructure Team at Infosys. Photo: Courtesy of Infosys. Read the complete customer story Download the brand new Vaisala HVAC eBook and explore our HVAC instruments and services offering. Learn how to choose the right parameters and sensors for HVAC control. Get tips on how to install HVAC sensors. Read what our customer say about our HVAC sensors Find out about our calibration services Watch free webinars Explore the FAQ’s section. Download Vaisala HVAC eBook Watch the video Installation of a Vaisala HVAC Sensor Easy Installation of HVAC Sensors You have several HVAC meter options to choose from to best suit your needs. We have a wide selection of wall-mounted and duct-mounted HVAC meters for indoor and outdoor use. Which ever meter, sensor or transmitter you choose, they are all easy to install and require very little maintenance. Watch video on how to install the Humidity and Temperature Transmitter Series HMW90 sensor and see how fast and easy it is. View all Vaisala HVAC Sensors Webinar: Maintaining HVAC CO2 Measurements the Easy Way In this webinar our expert Lars Stormbom gives tips on how to choose the right CO2 sensor for your case and what to look for in a sensor to make maintenance easy. Webinar: How to Choose the Best CO2 Sensors for Your HVAC Needs This webinar will go through the requirements for the CO2 sensors in different standards and certification schemes like ASHRAE 90.1 and LEED. Member of BACnet Interest Group The global BACnet standard is the only vendor-independent communication protocol for building automation. Visit BACnet website to learn more. Member of BSRIA Member of BSRIA, a UK-based testing, instrumentation, research and consultancy organisation, providing specialist services in construction and building services engineering. Watch the video Vaisala CARBOCAP Technology CARBOCAP® Technology Inside Vaisala uses a single-beam and dual-wavelength NDIR (Non-dispersive infrared) technology for measuring CO2, The patented CARBOCAP® technology is used in all our CO2 sensors. This technology incorporates a unique tunable band pass filter that was developed by Vaisala and is manufactured in our own state-of-the-art cleanroom. View this video to find out why it's unique and why it makes the Vaisala CO2 measurement the most reliable and accurate one on the market or learn more on our carbon dioxide page. Related Products Indigo 200 Series Transmitters for Vaisala's Smart Humidity, Temperature, Dew Point, Moisture in Oil, CO2 and H2O2 Probes Vaisala Indigo 200 Series host devices are part of Vaisala Indigo product family and intended for Vaisala's intelligent, stand-alone humidity probes... Read more Insight PC Software for easy access to Indigo compatible probes Vaisala Insight PC Software gives quick access to the configurations and data of the Indigo family measurement probes: humidity measurement smart... Read more viewLinc Continuous Monitoring System Read more Compact Humidity and Temperature Probe HMP9 for Rapidly Changing Environments The Vaisala HUMICAP® Humidity and Temperature Probe HMP9 is designed for easy installation in rapidly changing environments where a fast response time... Read more CO₂ Probe GMP252 for ppm-level measurements in agriculture, refrigeration, demanding HVAC, and for plant growth manufacturers The Vaisala CARBOCAP® Carbon Dioxide Probe GMP252 is an intelligent, stand-alone, ppm-level probe. It's intended for measuring CO2 in agriculture... Read more Humidity and Temperature Probe HMP3 for General Purpose Humidity and Temperature Applications with Exchangeable Sensor Vaisala HUMICAP® Humidity and Temperature Probe HMP3 is a general-purpose probe designed for processes with moderate humidity and temperature levels... Read more Humidity and Temperature Meter Series HMT330 for Demanding Humidity Measurement Measure humidity in harsh environments with the best-in-class instrument you can truly depend on. The Vaisala HUMICAP® Humidity and Temperature... Read more Humidity and Temperature Transmitter Series HMD/W80 ±3%RH Low Maintenance Transmitters for Standard HVAC The HMDW80 series is versatile with transmitters for wall and duct mounting for measuring relative humidity and temperature in various building... Read more Humidity and Temperature Transmitter Series HMDW110 ±2%RH transmitters with a certificate for demanding HVAC Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMDW110 is suitable for relative humidity, dew-point, enthalpy, wet-bulb temperature and... Read more Humidity and Temperature Transmitter Series HMS110 ±2%RH outdoor sensors for HVAC Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMS110 are ideal for cooling tower control and differential enthalpy control of... Read more Humidity and Temperature Transmitter Series HMS80 ±3%RH Outdoor Sensor for HVAC A reliable basic outdoor humidity sensor for a pole or wall installation. Dew point, wet bulb and enthalpy outputs can be selected by dip switch... Read more Humidity and Temperature Transmitter Series HMW90 ±1.7%RH Wall Transmitters with a Certificate for Demanding HVAC Typical applications are include museums and archives, production and warehouse facilities, data centers, laboratories, and testing environments. The... Read more Humidity and Temperature Transmitters HMD60 ±1.5%RH Transmitters for Demanding HVAC, with a Certificate The sturdy and reliable duct mounted Vaisala HUMICAP® Humidity Transmitter Series HMD60 is designed for monitoring relative humidity in demanding HVAC... Read more Humidity and Temperature Transmitters HMT120/130 ±1.5%RH Transmitters with Exchangeable Probes for Cleanrooms and Light Industrial Applications The Vaisala HUMICAP® HMT120 and HMT130 transmitters are suitable for cleanrooms, museums, laboratories and data centers. Maintaining measurement... Read more Humidity and Temperature Probe HMP110 with ±1.5%RH Accuracy for Demanding Volume Applications The Vaisala HUMICAP® Humidity and Temperature Probe HMP110 is a trouble-free and cost-effective humidity transmitter with high accuracy and good... Read more Hand-Held Humidity and Temperature Meter HM40 for Quick Inspections and Spot-Checking Compact, portable, and easy-to-use Vaisala HUMICAP® HM40 Hand-Held is designed for spot-checking in a wide variety of environments and is available... Read more Handheld CO₂ Meter GM70 for Spot-Checking Applications The Vaisala CARBOCAP® Hand-held Carbon Dioxide Meter GM70 measures volume concentration of CO2 in the units of ppm or %. It is a user-friendly meter... Read more Handheld Humidity and Temperature Meter HM70 for Demanding Spot-Checking Applications Vaisala HUMICAP® HM70 Handheld is designed for demanding humidity measurement in spot-checking applications. It is also ideal for field checking and... Read more CO2, Humidity and Temperature Transmitter Series GMW80 for Monitoring Indoor Air Quality Measuring CO2 is the most economical way to monitor both indoor air quality (IAQ) and human presence with one sensor. Inadequate ventilation results... Read more CO2, Temperature and Humidity Transmitter Series GMW90 for Green Building Projects The wall-mounted Vaisala GMW90 Series CARBOCAP® Carbon Dioxide, Temperature and Humidity Transmitters are especially suited for green building... Read more CO₂ Transmitter Series GM20 for Demand Controlled Ventilation The duct-mounted Vaisala CARBOCAP® Carbon Dioxide Transmitter Series GMD20 are specially designed for demand-controlled ventilation (DCV). They are... Read more Intrinsically safe Humidity and Temperature Transmitter HMT368 for moisture in oil and JET A-1 fuel Humidity and Temperature Transmitter HMT368 is suitable for measuring moisture in oil in e.g. central lubrication systems, hydraulic systems and power... Read more Vaisala OPC UA Server For data collection and system control Read more viewLinc Application Programming Interface To integrate viewLinc with existing systems The Vaisala viewLinc Monitoring System measures a variety of environmental parameters in industrial and regulated GxP applications. A continuous... Read more Related Stories Success Story Stable H2O2 vapor sensing as a bio-decontamination game-changer Van Veldhuijzen-Boxmeer Disinfection Services has been providing sterilization and bio-decontamination services since 1990. Their services... Read more Blog | Apr 3, 2020 The importance of humidity sensors Humidity sensors are among the most commonly used instruments in environmental monitoring applications. Why? Because they are one of the most... Read more Success Story Combating COVID-19 with vaporized hydrogen peroxide bio-decontamination In January of 2020, the International Health Regulations Emergency Committee of the World Health Organization announced the outbreak of... Read more Blog | Feb 25, 2020 Developing future-proof solutions The world around us is changing fast with the adoption of artificial intelligence (AI) and machine learning (ML), and our customers’ operating... Read more Blog | Jan 13, 2020 Common pitfalls when installing HVAC outdoor sensors This is the third in a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more Blog | Dec 18, 2019 Common pitfalls when installing HVAC duct sensors This is the second in a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more Blog | Nov 26, 2019 Common pitfalls when installing HVAC wall sensors This is the first of a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more Blog | Aug 12, 2019 Choose the Right CO2 Sensor for Your HVAC Application The environment in which you’re measuring CO2 plays an important role in determining the best choice of sensor for your application. In this... Read more Blog | Jun 3, 2019 How CARBOCAP Can Help with HVAC CO2 Measurements CO2 sensors are central in reducing energy consumption using demand-controlled ventilation (DCV). As the measurement directly controls the... Read more Press Release | Apr 29, 2019 Vaisala Widens Its Product Offering for Demanding HVAC and Light Industrial Applications Vaisala Press Release April 29, 2019 Vaisala Widens Its Product Offering... Read more Blog | Mar 18, 2019 Why Do We Measure CO2 in HVAC Applications? Measuring CO₂ in HVAC applications Heating, ventilation, and air conditioning (HVAC) is typically not considered a challenging application area... Read more Blog | Feb 6, 2019 Field Maintenance of HVAC Humidity and CO2 Sensors Anything worth measuring is worth measuring right, and to do that periodic calibration is essential. In HVAC, the primary reason to measure CO₂... Read more Blog | Jan 16, 2019 What Causes Drift in Relative Humidity Sensors? All gases in the environment will interact with a humidity sensor and potentially cause drift. Water needs to get in and out of the sensor... Read more Blog | Nov 21, 2018 How to Choose the Right Parameter for Humidity Control in HVAC Most people working in the HVAC field are familiar with using relative humidity (RH) as the default control parameter for humidity measurement... Read more Blog | Oct 24, 2018 Why Is Measuring CO2 Important? Most of us know that CO₂ is a colorless, odorless gas that’s soluble in water and often seen as the bubbles in fizzy drinks. But it’s also a... Read more Press Release | Sep 25, 2018 Upgraded Performance With the New HMD60 Series Transmitters Vaisala Press Release September 25, 2018 Upgraded Performance With the New... Read more Blog | Jul 30, 2018 Gaining In-depth Understanding of the Problem is The Key - Millennium Technology Prize Winner Tuomo Suntola interviewed Doctor Tuomo Suntola, who this spring received the prestigious 2018 Millennium Technology Prize for his technology of atomic layer deposition... Read more Success Story Infosys Monitors Indoor Air with Vaisala’s HVAC Sensors Best Quality Indoor Air with Vaisala's HVAC Sensors Infosys is the second largest Indian IT consulting company with 200,000 plus employees and... Read more Success Story High Indoor Air Quality with Minimum Energy Costs A random pattern of occupancy makes ventilation more difficult: the control system must be able to detect when ventilation is needed and to what... Read more Success Story Creating the Right Climate Vaisala Humidity Transmitters Help to Preserve the Royal Warship Vasa Saving the famous 17th century Swedish warship, Vasa, from further... Read more Success Story Vaisala Equips the New Children´s Hospital in Helsinki Vaisala was the honorary in-kind donator for the New Children’s Hospital that was built in Helsinki. The construction commenced already in 2014... Read more Blog | Nov 15, 2017 Old Cooling Methods Benefit from Using New Technology Cooling tower control systems depend on accurate and reliable humidity measurement to increase energy efficiency and reduce maintenance costs... Read more Blog | Nov 6, 2017 How Much Does CO2 Affect Employees’ Productivity? There’s no doubt that ventilation indoors must be carried out as energy efficiently as possible; too much of it will waste energy and too little... Read more Blog | Oct 27, 2017 Sensor maintenance for optimal energy savings in HVAC Advanced control regimes such as Demand Controlled Ventilation (DCV) and free cooling are gaining popularity as the pressure to reduce energy... Read more Blog | Oct 24, 2017 Indoor Air Measurements - Get control of your building system Buildings must be made smarter to save energy and keep their inhabitants happy and healthy. To achieve sustainable results, building system... Read more Success Story CO2 Monitoring Helps Make Defect-free Potato Chips Carbon dioxide monitoring technology helps make defect-free chips. From farm to fryer, potatoes grown to make potato chips are sensitive to... Read more Success Story How Shenzhen Subway Keeps It Cool A quickly growing subway system in southern China chose Vaisala’s humidity and temperature transmitters for its air conditioning control system... Read more Success Story Keeping Data Centers Cool Increasing demand for data processing and storage capacity has led to major companies investing in new facilities that provide web-based... Read more Success Story Integrated Weather Measurement Solution Increases Building Efficiency Building automation systems regulate temperature, humidity and air quality. Siemens integrates a multi-parameter Vaisala weather transmitter... Read more
HVAC Measurement Vaisala offers industry benchmark HVAC (Heating, Ventilation and Air-Conditioning) meters, sensors and transmitters for measuring humidity, temperature, and carbon dioxide both indoors and outdoors. View all HVAC sensors and detectors
Vaisala's reliable and accurate HVAC meters and sensors are designed with energy efficiency in mind, whether you are optimizing cooling towers or demand-controlled ventilation. Our large selection includes ±3% and ±2% humidity and temperature measurement HVAC meters, CO2 measurement sensors and also handheld meters. They can be used indoors and outdoors, and installed on walls or in ventilation ducts. To see where our HVAC sensors can be used, enter the Vaisala HVAC House or view all our HVAC sensors at a glance. Enter Vaisala HVAC House
Why Choose Vaisala? Infosys, the second largest Indian IT-consulting company with 200,000 plus employees and revenue of over USD 10 billion, chose Vaisala’s HVAC sensors for its projects. “We find that Vaisala is unique with the 5-year stability specification for the HVAC products. In the last 3 years we have been using the products, we have received timely support from Vaisala and are quite satisfied with the product quality”, says Mr. Vikas Makkar, Regional Manager Infrastructure Team at Infosys. Photo: Courtesy of Infosys. Read the complete customer story
Download the brand new Vaisala HVAC eBook and explore our HVAC instruments and services offering. Learn how to choose the right parameters and sensors for HVAC control. Get tips on how to install HVAC sensors. Read what our customer say about our HVAC sensors Find out about our calibration services Watch free webinars Explore the FAQ’s section. Download Vaisala HVAC eBook
Watch the video Installation of a Vaisala HVAC Sensor Easy Installation of HVAC Sensors You have several HVAC meter options to choose from to best suit your needs. We have a wide selection of wall-mounted and duct-mounted HVAC meters for indoor and outdoor use. Which ever meter, sensor or transmitter you choose, they are all easy to install and require very little maintenance. Watch video on how to install the Humidity and Temperature Transmitter Series HMW90 sensor and see how fast and easy it is. View all Vaisala HVAC Sensors
Webinar: Maintaining HVAC CO2 Measurements the Easy Way In this webinar our expert Lars Stormbom gives tips on how to choose the right CO2 sensor for your case and what to look for in a sensor to make maintenance easy. Webinar: How to Choose the Best CO2 Sensors for Your HVAC Needs This webinar will go through the requirements for the CO2 sensors in different standards and certification schemes like ASHRAE 90.1 and LEED. Member of BACnet Interest Group The global BACnet standard is the only vendor-independent communication protocol for building automation. Visit BACnet website to learn more. Member of BSRIA Member of BSRIA, a UK-based testing, instrumentation, research and consultancy organisation, providing specialist services in construction and building services engineering.
Webinar: Maintaining HVAC CO2 Measurements the Easy Way In this webinar our expert Lars Stormbom gives tips on how to choose the right CO2 sensor for your case and what to look for in a sensor to make maintenance easy.
Webinar: How to Choose the Best CO2 Sensors for Your HVAC Needs This webinar will go through the requirements for the CO2 sensors in different standards and certification schemes like ASHRAE 90.1 and LEED.
Member of BACnet Interest Group The global BACnet standard is the only vendor-independent communication protocol for building automation. Visit BACnet website to learn more.
Member of BSRIA Member of BSRIA, a UK-based testing, instrumentation, research and consultancy organisation, providing specialist services in construction and building services engineering.
Watch the video Vaisala CARBOCAP Technology CARBOCAP® Technology Inside Vaisala uses a single-beam and dual-wavelength NDIR (Non-dispersive infrared) technology for measuring CO2, The patented CARBOCAP® technology is used in all our CO2 sensors. This technology incorporates a unique tunable band pass filter that was developed by Vaisala and is manufactured in our own state-of-the-art cleanroom. View this video to find out why it's unique and why it makes the Vaisala CO2 measurement the most reliable and accurate one on the market or learn more on our carbon dioxide page.
Related Products Indigo 200 Series Transmitters for Vaisala's Smart Humidity, Temperature, Dew Point, Moisture in Oil, CO2 and H2O2 Probes Vaisala Indigo 200 Series host devices are part of Vaisala Indigo product family and intended for Vaisala's intelligent, stand-alone humidity probes... Read more Insight PC Software for easy access to Indigo compatible probes Vaisala Insight PC Software gives quick access to the configurations and data of the Indigo family measurement probes: humidity measurement smart... Read more viewLinc Continuous Monitoring System Read more Compact Humidity and Temperature Probe HMP9 for Rapidly Changing Environments The Vaisala HUMICAP® Humidity and Temperature Probe HMP9 is designed for easy installation in rapidly changing environments where a fast response time... Read more CO₂ Probe GMP252 for ppm-level measurements in agriculture, refrigeration, demanding HVAC, and for plant growth manufacturers The Vaisala CARBOCAP® Carbon Dioxide Probe GMP252 is an intelligent, stand-alone, ppm-level probe. It's intended for measuring CO2 in agriculture... Read more Humidity and Temperature Probe HMP3 for General Purpose Humidity and Temperature Applications with Exchangeable Sensor Vaisala HUMICAP® Humidity and Temperature Probe HMP3 is a general-purpose probe designed for processes with moderate humidity and temperature levels... Read more Humidity and Temperature Meter Series HMT330 for Demanding Humidity Measurement Measure humidity in harsh environments with the best-in-class instrument you can truly depend on. The Vaisala HUMICAP® Humidity and Temperature... Read more Humidity and Temperature Transmitter Series HMD/W80 ±3%RH Low Maintenance Transmitters for Standard HVAC The HMDW80 series is versatile with transmitters for wall and duct mounting for measuring relative humidity and temperature in various building... Read more Humidity and Temperature Transmitter Series HMDW110 ±2%RH transmitters with a certificate for demanding HVAC Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMDW110 is suitable for relative humidity, dew-point, enthalpy, wet-bulb temperature and... Read more Humidity and Temperature Transmitter Series HMS110 ±2%RH outdoor sensors for HVAC Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMS110 are ideal for cooling tower control and differential enthalpy control of... Read more Humidity and Temperature Transmitter Series HMS80 ±3%RH Outdoor Sensor for HVAC A reliable basic outdoor humidity sensor for a pole or wall installation. Dew point, wet bulb and enthalpy outputs can be selected by dip switch... Read more Humidity and Temperature Transmitter Series HMW90 ±1.7%RH Wall Transmitters with a Certificate for Demanding HVAC Typical applications are include museums and archives, production and warehouse facilities, data centers, laboratories, and testing environments. The... Read more Humidity and Temperature Transmitters HMD60 ±1.5%RH Transmitters for Demanding HVAC, with a Certificate The sturdy and reliable duct mounted Vaisala HUMICAP® Humidity Transmitter Series HMD60 is designed for monitoring relative humidity in demanding HVAC... Read more Humidity and Temperature Transmitters HMT120/130 ±1.5%RH Transmitters with Exchangeable Probes for Cleanrooms and Light Industrial Applications The Vaisala HUMICAP® HMT120 and HMT130 transmitters are suitable for cleanrooms, museums, laboratories and data centers. Maintaining measurement... Read more Humidity and Temperature Probe HMP110 with ±1.5%RH Accuracy for Demanding Volume Applications The Vaisala HUMICAP® Humidity and Temperature Probe HMP110 is a trouble-free and cost-effective humidity transmitter with high accuracy and good... Read more Hand-Held Humidity and Temperature Meter HM40 for Quick Inspections and Spot-Checking Compact, portable, and easy-to-use Vaisala HUMICAP® HM40 Hand-Held is designed for spot-checking in a wide variety of environments and is available... Read more Handheld CO₂ Meter GM70 for Spot-Checking Applications The Vaisala CARBOCAP® Hand-held Carbon Dioxide Meter GM70 measures volume concentration of CO2 in the units of ppm or %. It is a user-friendly meter... Read more Handheld Humidity and Temperature Meter HM70 for Demanding Spot-Checking Applications Vaisala HUMICAP® HM70 Handheld is designed for demanding humidity measurement in spot-checking applications. It is also ideal for field checking and... Read more CO2, Humidity and Temperature Transmitter Series GMW80 for Monitoring Indoor Air Quality Measuring CO2 is the most economical way to monitor both indoor air quality (IAQ) and human presence with one sensor. Inadequate ventilation results... Read more CO2, Temperature and Humidity Transmitter Series GMW90 for Green Building Projects The wall-mounted Vaisala GMW90 Series CARBOCAP® Carbon Dioxide, Temperature and Humidity Transmitters are especially suited for green building... Read more CO₂ Transmitter Series GM20 for Demand Controlled Ventilation The duct-mounted Vaisala CARBOCAP® Carbon Dioxide Transmitter Series GMD20 are specially designed for demand-controlled ventilation (DCV). They are... Read more Intrinsically safe Humidity and Temperature Transmitter HMT368 for moisture in oil and JET A-1 fuel Humidity and Temperature Transmitter HMT368 is suitable for measuring moisture in oil in e.g. central lubrication systems, hydraulic systems and power... Read more Vaisala OPC UA Server For data collection and system control Read more viewLinc Application Programming Interface To integrate viewLinc with existing systems The Vaisala viewLinc Monitoring System measures a variety of environmental parameters in industrial and regulated GxP applications. A continuous... Read more
Indigo 200 Series Transmitters for Vaisala's Smart Humidity, Temperature, Dew Point, Moisture in Oil, CO2 and H2O2 Probes Vaisala Indigo 200 Series host devices are part of Vaisala Indigo product family and intended for Vaisala's intelligent, stand-alone humidity probes... Read more
Insight PC Software for easy access to Indigo compatible probes Vaisala Insight PC Software gives quick access to the configurations and data of the Indigo family measurement probes: humidity measurement smart... Read more
Compact Humidity and Temperature Probe HMP9 for Rapidly Changing Environments The Vaisala HUMICAP® Humidity and Temperature Probe HMP9 is designed for easy installation in rapidly changing environments where a fast response time... Read more
CO₂ Probe GMP252 for ppm-level measurements in agriculture, refrigeration, demanding HVAC, and for plant growth manufacturers The Vaisala CARBOCAP® Carbon Dioxide Probe GMP252 is an intelligent, stand-alone, ppm-level probe. It's intended for measuring CO2 in agriculture... Read more
Humidity and Temperature Probe HMP3 for General Purpose Humidity and Temperature Applications with Exchangeable Sensor Vaisala HUMICAP® Humidity and Temperature Probe HMP3 is a general-purpose probe designed for processes with moderate humidity and temperature levels... Read more
Humidity and Temperature Meter Series HMT330 for Demanding Humidity Measurement Measure humidity in harsh environments with the best-in-class instrument you can truly depend on. The Vaisala HUMICAP® Humidity and Temperature... Read more
Humidity and Temperature Transmitter Series HMD/W80 ±3%RH Low Maintenance Transmitters for Standard HVAC The HMDW80 series is versatile with transmitters for wall and duct mounting for measuring relative humidity and temperature in various building... Read more
Humidity and Temperature Transmitter Series HMDW110 ±2%RH transmitters with a certificate for demanding HVAC Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMDW110 is suitable for relative humidity, dew-point, enthalpy, wet-bulb temperature and... Read more
Humidity and Temperature Transmitter Series HMS110 ±2%RH outdoor sensors for HVAC Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMS110 are ideal for cooling tower control and differential enthalpy control of... Read more
Humidity and Temperature Transmitter Series HMS80 ±3%RH Outdoor Sensor for HVAC A reliable basic outdoor humidity sensor for a pole or wall installation. Dew point, wet bulb and enthalpy outputs can be selected by dip switch... Read more
Humidity and Temperature Transmitter Series HMW90 ±1.7%RH Wall Transmitters with a Certificate for Demanding HVAC Typical applications are include museums and archives, production and warehouse facilities, data centers, laboratories, and testing environments. The... Read more
Humidity and Temperature Transmitters HMD60 ±1.5%RH Transmitters for Demanding HVAC, with a Certificate The sturdy and reliable duct mounted Vaisala HUMICAP® Humidity Transmitter Series HMD60 is designed for monitoring relative humidity in demanding HVAC... Read more
Humidity and Temperature Transmitters HMT120/130 ±1.5%RH Transmitters with Exchangeable Probes for Cleanrooms and Light Industrial Applications The Vaisala HUMICAP® HMT120 and HMT130 transmitters are suitable for cleanrooms, museums, laboratories and data centers. Maintaining measurement... Read more
Humidity and Temperature Probe HMP110 with ±1.5%RH Accuracy for Demanding Volume Applications The Vaisala HUMICAP® Humidity and Temperature Probe HMP110 is a trouble-free and cost-effective humidity transmitter with high accuracy and good... Read more
Hand-Held Humidity and Temperature Meter HM40 for Quick Inspections and Spot-Checking Compact, portable, and easy-to-use Vaisala HUMICAP® HM40 Hand-Held is designed for spot-checking in a wide variety of environments and is available... Read more
Handheld CO₂ Meter GM70 for Spot-Checking Applications The Vaisala CARBOCAP® Hand-held Carbon Dioxide Meter GM70 measures volume concentration of CO2 in the units of ppm or %. It is a user-friendly meter... Read more
Handheld Humidity and Temperature Meter HM70 for Demanding Spot-Checking Applications Vaisala HUMICAP® HM70 Handheld is designed for demanding humidity measurement in spot-checking applications. It is also ideal for field checking and... Read more
CO2, Humidity and Temperature Transmitter Series GMW80 for Monitoring Indoor Air Quality Measuring CO2 is the most economical way to monitor both indoor air quality (IAQ) and human presence with one sensor. Inadequate ventilation results... Read more
CO2, Temperature and Humidity Transmitter Series GMW90 for Green Building Projects The wall-mounted Vaisala GMW90 Series CARBOCAP® Carbon Dioxide, Temperature and Humidity Transmitters are especially suited for green building... Read more
CO₂ Transmitter Series GM20 for Demand Controlled Ventilation The duct-mounted Vaisala CARBOCAP® Carbon Dioxide Transmitter Series GMD20 are specially designed for demand-controlled ventilation (DCV). They are... Read more
Intrinsically safe Humidity and Temperature Transmitter HMT368 for moisture in oil and JET A-1 fuel Humidity and Temperature Transmitter HMT368 is suitable for measuring moisture in oil in e.g. central lubrication systems, hydraulic systems and power... Read more
viewLinc Application Programming Interface To integrate viewLinc with existing systems The Vaisala viewLinc Monitoring System measures a variety of environmental parameters in industrial and regulated GxP applications. A continuous... Read more
Related Stories Success Story Stable H2O2 vapor sensing as a bio-decontamination game-changer Van Veldhuijzen-Boxmeer Disinfection Services has been providing sterilization and bio-decontamination services since 1990. Their services... Read more Blog | Apr 3, 2020 The importance of humidity sensors Humidity sensors are among the most commonly used instruments in environmental monitoring applications. Why? Because they are one of the most... Read more Success Story Combating COVID-19 with vaporized hydrogen peroxide bio-decontamination In January of 2020, the International Health Regulations Emergency Committee of the World Health Organization announced the outbreak of... Read more Blog | Feb 25, 2020 Developing future-proof solutions The world around us is changing fast with the adoption of artificial intelligence (AI) and machine learning (ML), and our customers’ operating... Read more Blog | Jan 13, 2020 Common pitfalls when installing HVAC outdoor sensors This is the third in a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more Blog | Dec 18, 2019 Common pitfalls when installing HVAC duct sensors This is the second in a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more Blog | Nov 26, 2019 Common pitfalls when installing HVAC wall sensors This is the first of a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more Blog | Aug 12, 2019 Choose the Right CO2 Sensor for Your HVAC Application The environment in which you’re measuring CO2 plays an important role in determining the best choice of sensor for your application. In this... Read more Blog | Jun 3, 2019 How CARBOCAP Can Help with HVAC CO2 Measurements CO2 sensors are central in reducing energy consumption using demand-controlled ventilation (DCV). As the measurement directly controls the... Read more Press Release | Apr 29, 2019 Vaisala Widens Its Product Offering for Demanding HVAC and Light Industrial Applications Vaisala Press Release April 29, 2019 Vaisala Widens Its Product Offering... Read more Blog | Mar 18, 2019 Why Do We Measure CO2 in HVAC Applications? Measuring CO₂ in HVAC applications Heating, ventilation, and air conditioning (HVAC) is typically not considered a challenging application area... Read more Blog | Feb 6, 2019 Field Maintenance of HVAC Humidity and CO2 Sensors Anything worth measuring is worth measuring right, and to do that periodic calibration is essential. In HVAC, the primary reason to measure CO₂... Read more Blog | Jan 16, 2019 What Causes Drift in Relative Humidity Sensors? All gases in the environment will interact with a humidity sensor and potentially cause drift. Water needs to get in and out of the sensor... Read more Blog | Nov 21, 2018 How to Choose the Right Parameter for Humidity Control in HVAC Most people working in the HVAC field are familiar with using relative humidity (RH) as the default control parameter for humidity measurement... Read more Blog | Oct 24, 2018 Why Is Measuring CO2 Important? Most of us know that CO₂ is a colorless, odorless gas that’s soluble in water and often seen as the bubbles in fizzy drinks. But it’s also a... Read more Press Release | Sep 25, 2018 Upgraded Performance With the New HMD60 Series Transmitters Vaisala Press Release September 25, 2018 Upgraded Performance With the New... Read more Blog | Jul 30, 2018 Gaining In-depth Understanding of the Problem is The Key - Millennium Technology Prize Winner Tuomo Suntola interviewed Doctor Tuomo Suntola, who this spring received the prestigious 2018 Millennium Technology Prize for his technology of atomic layer deposition... Read more Success Story Infosys Monitors Indoor Air with Vaisala’s HVAC Sensors Best Quality Indoor Air with Vaisala's HVAC Sensors Infosys is the second largest Indian IT consulting company with 200,000 plus employees and... Read more Success Story High Indoor Air Quality with Minimum Energy Costs A random pattern of occupancy makes ventilation more difficult: the control system must be able to detect when ventilation is needed and to what... Read more Success Story Creating the Right Climate Vaisala Humidity Transmitters Help to Preserve the Royal Warship Vasa Saving the famous 17th century Swedish warship, Vasa, from further... Read more Success Story Vaisala Equips the New Children´s Hospital in Helsinki Vaisala was the honorary in-kind donator for the New Children’s Hospital that was built in Helsinki. The construction commenced already in 2014... Read more Blog | Nov 15, 2017 Old Cooling Methods Benefit from Using New Technology Cooling tower control systems depend on accurate and reliable humidity measurement to increase energy efficiency and reduce maintenance costs... Read more Blog | Nov 6, 2017 How Much Does CO2 Affect Employees’ Productivity? There’s no doubt that ventilation indoors must be carried out as energy efficiently as possible; too much of it will waste energy and too little... Read more Blog | Oct 27, 2017 Sensor maintenance for optimal energy savings in HVAC Advanced control regimes such as Demand Controlled Ventilation (DCV) and free cooling are gaining popularity as the pressure to reduce energy... Read more Blog | Oct 24, 2017 Indoor Air Measurements - Get control of your building system Buildings must be made smarter to save energy and keep their inhabitants happy and healthy. To achieve sustainable results, building system... Read more Success Story CO2 Monitoring Helps Make Defect-free Potato Chips Carbon dioxide monitoring technology helps make defect-free chips. From farm to fryer, potatoes grown to make potato chips are sensitive to... Read more Success Story How Shenzhen Subway Keeps It Cool A quickly growing subway system in southern China chose Vaisala’s humidity and temperature transmitters for its air conditioning control system... Read more Success Story Keeping Data Centers Cool Increasing demand for data processing and storage capacity has led to major companies investing in new facilities that provide web-based... Read more Success Story Integrated Weather Measurement Solution Increases Building Efficiency Building automation systems regulate temperature, humidity and air quality. Siemens integrates a multi-parameter Vaisala weather transmitter... Read more
Success Story Stable H2O2 vapor sensing as a bio-decontamination game-changer Van Veldhuijzen-Boxmeer Disinfection Services has been providing sterilization and bio-decontamination services since 1990. Their services... Read more
Blog | Apr 3, 2020 The importance of humidity sensors Humidity sensors are among the most commonly used instruments in environmental monitoring applications. Why? Because they are one of the most... Read more
Success Story Combating COVID-19 with vaporized hydrogen peroxide bio-decontamination In January of 2020, the International Health Regulations Emergency Committee of the World Health Organization announced the outbreak of... Read more
Blog | Feb 25, 2020 Developing future-proof solutions The world around us is changing fast with the adoption of artificial intelligence (AI) and machine learning (ML), and our customers’ operating... Read more
Blog | Jan 13, 2020 Common pitfalls when installing HVAC outdoor sensors This is the third in a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more
Blog | Dec 18, 2019 Common pitfalls when installing HVAC duct sensors This is the second in a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more
Blog | Nov 26, 2019 Common pitfalls when installing HVAC wall sensors This is the first of a series of three blog posts looking at common pitfalls when installing HVAC sensors, focusing on physical measurement... Read more
Blog | Aug 12, 2019 Choose the Right CO2 Sensor for Your HVAC Application The environment in which you’re measuring CO2 plays an important role in determining the best choice of sensor for your application. In this... Read more
Blog | Jun 3, 2019 How CARBOCAP Can Help with HVAC CO2 Measurements CO2 sensors are central in reducing energy consumption using demand-controlled ventilation (DCV). As the measurement directly controls the... Read more
Press Release | Apr 29, 2019 Vaisala Widens Its Product Offering for Demanding HVAC and Light Industrial Applications Vaisala Press Release April 29, 2019 Vaisala Widens Its Product Offering... Read more
Blog | Mar 18, 2019 Why Do We Measure CO2 in HVAC Applications? Measuring CO₂ in HVAC applications Heating, ventilation, and air conditioning (HVAC) is typically not considered a challenging application area... Read more
Blog | Feb 6, 2019 Field Maintenance of HVAC Humidity and CO2 Sensors Anything worth measuring is worth measuring right, and to do that periodic calibration is essential. In HVAC, the primary reason to measure CO₂... Read more
Blog | Jan 16, 2019 What Causes Drift in Relative Humidity Sensors? All gases in the environment will interact with a humidity sensor and potentially cause drift. Water needs to get in and out of the sensor... Read more
Blog | Nov 21, 2018 How to Choose the Right Parameter for Humidity Control in HVAC Most people working in the HVAC field are familiar with using relative humidity (RH) as the default control parameter for humidity measurement... Read more
Blog | Oct 24, 2018 Why Is Measuring CO2 Important? Most of us know that CO₂ is a colorless, odorless gas that’s soluble in water and often seen as the bubbles in fizzy drinks. But it’s also a... Read more
Press Release | Sep 25, 2018 Upgraded Performance With the New HMD60 Series Transmitters Vaisala Press Release September 25, 2018 Upgraded Performance With the New... Read more
Blog | Jul 30, 2018 Gaining In-depth Understanding of the Problem is The Key - Millennium Technology Prize Winner Tuomo Suntola interviewed Doctor Tuomo Suntola, who this spring received the prestigious 2018 Millennium Technology Prize for his technology of atomic layer deposition... Read more
Success Story Infosys Monitors Indoor Air with Vaisala’s HVAC Sensors Best Quality Indoor Air with Vaisala's HVAC Sensors Infosys is the second largest Indian IT consulting company with 200,000 plus employees and... Read more
Success Story High Indoor Air Quality with Minimum Energy Costs A random pattern of occupancy makes ventilation more difficult: the control system must be able to detect when ventilation is needed and to what... Read more
Success Story Creating the Right Climate Vaisala Humidity Transmitters Help to Preserve the Royal Warship Vasa Saving the famous 17th century Swedish warship, Vasa, from further... Read more
Success Story Vaisala Equips the New Children´s Hospital in Helsinki Vaisala was the honorary in-kind donator for the New Children’s Hospital that was built in Helsinki. The construction commenced already in 2014... Read more
Blog | Nov 15, 2017 Old Cooling Methods Benefit from Using New Technology Cooling tower control systems depend on accurate and reliable humidity measurement to increase energy efficiency and reduce maintenance costs... Read more
Blog | Nov 6, 2017 How Much Does CO2 Affect Employees’ Productivity? There’s no doubt that ventilation indoors must be carried out as energy efficiently as possible; too much of it will waste energy and too little... Read more
Blog | Oct 27, 2017 Sensor maintenance for optimal energy savings in HVAC Advanced control regimes such as Demand Controlled Ventilation (DCV) and free cooling are gaining popularity as the pressure to reduce energy... Read more
Blog | Oct 24, 2017 Indoor Air Measurements - Get control of your building system Buildings must be made smarter to save energy and keep their inhabitants happy and healthy. To achieve sustainable results, building system... Read more
Success Story CO2 Monitoring Helps Make Defect-free Potato Chips Carbon dioxide monitoring technology helps make defect-free chips. From farm to fryer, potatoes grown to make potato chips are sensitive to... Read more
Success Story How Shenzhen Subway Keeps It Cool A quickly growing subway system in southern China chose Vaisala’s humidity and temperature transmitters for its air conditioning control system... Read more
Success Story Keeping Data Centers Cool Increasing demand for data processing and storage capacity has led to major companies investing in new facilities that provide web-based... Read more
Success Story Integrated Weather Measurement Solution Increases Building Efficiency Building automation systems regulate temperature, humidity and air quality. Siemens integrates a multi-parameter Vaisala weather transmitter... Read more
