HVAC measurements for better indoor environments Reliability is a priority in building automation systems, and Vaisala’s HVAC sensors and transmitters are built to perform. Download Vaisala HVAC ebook Premium sensors and transmitters for professional use You will find humidity, temperature, carbon dioxide, and differential pressure transmitters in our selection of high-class measurement instruments. The transmitters are especially beneficial in cooling and air-conditioning of critical infrastructures, demand-controlled ventilation systems, indoor air quality monitoring, and ventilation controls of sites with high-reliability requirements. Why choose Vaisala HVAC measurements? Unrivaled performance. Transmitters from Vaisala are renowned for their unrivaled performance, reliable results, and low total cost of ownership. 5-year warranty. We are confident in our products' lasting quality and long lifetime and offer a standard warranty period of five years on our HVAC transmitters. A sustainable choice. The long-lasting performance, support for field calibration, easy maintenance, exchangeable measurement components, and precise measurements enable better control of HVAC processes. Browse products Explore Application Examples Demand-controlled ventilation HVAC measurement Indoor air quality (IAQ) Outdoor measurements in building operations Data centers Museums, archives and libraries Construction material manufacturing Metro stations HVAC product highlights Immersion Temperature Transmitter TMI110 The high-accuracy immersion temperature transmitter TMI110 is designed for measuring cooling/heating water temperatures in HVAC automation systems. Weather Transmitter WXT530 Series The perfect mix of accurate air pressure, temperature, humidity, rainfall, wind speed, and wind direction data to measure weather conditions without the expense or magnitude of an automatic weather station. Jade Smart Cloud Combining industrial-grade measurements with secure and reliable wireless monitoring, Vaisala Jade Smart Cloud brings new levels of proficiency and flexibility for professionals. 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 Transmitters 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 Download HVAC product brochure Vaisala HVAC transmitters The unique, cutting-edge Vaisala sensor technologies are manifested throughout our versatile range of products. The accuracy and long-term stability of Vaisala sensors are absolutely the best of class within the industry. DOWNLOAD BROCHURE Watch HVAC related webinars WEBINAR Outdoor Humidity Measurement in HVAC Applications Learn about the uses of outdoor humidity sensors in HVAC applications. Evaporative cooling and economizers are widely used and indeed required by some standards. However not all humidity sensor are suitable for this type of measurement. SIGN UP WEBINAR Paradigm shift in building ventilation: Future requirements for Demand Controlled Ventilation and Indoor Air Quality The goal of energy efficiency and the need for good indoor air quality intersect with the application of demand-controlled ventilation systems. What are the future requirements for Demand Controlled Ventilation and Indoor Air Quality? SIGN UP WEBINAR How to Choose the Best CO2 Sensors for Your HVAC Needs Listen to our on-demand webinar on the requirements for the CO2 sensors in different standards and certification schemes like ASHRAE 90.1 and LEED. SIGN UP WEBINAR Plan of Action: Calibration resources to optimize measurement performance Industries depend on sensor measurements to help meet goals of efficiency and automation, and the responsibility to maintain those measurements has a direct effect on those outcomes. As with all precision instrumentation, environmental and process measurement sensors are not maintenance-free, and require service to ensure that they provide reliable and accurate data. SIGN UP WEBINAR Data Center Innovation: The importance of accuracy to maximize energy efficiency In this webinar, Michael Gantert from Munters and Anu Kätkä from Vaisala will discuss the importance of measurement accuracy to maximize energy efficiency of data centers. SIGN UP WEBINAR Benefits of Vaisala CARBOCAP Measurement Technology in HVAC and Other CO2 Measurement Applications Discover the advantages of the CARBOCAP technology over other infrared CO2 measurement technologies. Learn how CARBOCAP actually works and how this technology could help you. SIGN UP WEBINAR How to choose the right humidity parameter for humidity control in HVAC systems Many people working in the HVAC field know about relative humidity (RH) as a parameter used in HVAC controls. Relative humidity, however, is not always the best option as a control parameter. At times there are other choices that will make the conditions more stable or the system commissioning easier. SIGN UP WEBINAR Improving HVAC Energy Efficiency Accurate measurement of relative humidity and temperature is critical to the optimization of HVAC performance. If the readings of outdoor and/or indoor humidity sensors are off, both energy efficiency and human comfort may be compromised. SIGN UP Most popular HVAC blogs and articles BLOG Why Do We Measure CO₂ in HVAC Applications? Heating, ventilation, and air conditioning (HVAC) is typically not considered a challenging application area when it comes to CO₂ sensors. While it’s true that ambient conditions are mostly benign, sensors still need to be reliable, easy to maintain, and offer long-term measurement stability. READ MORE BLOG 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 errors that are caused by incorrect installation. This post focuses on common installation errors for HVAC duct sensors. READ MORE BLOG Relative Humidity – What Is It And Why Is It Important? There are some helpful rules of thumb to help us understand how RH works at a basic level, though it’s important to remember that unless you’re in a closed system such as an environmental test chamber, other factors can affect results. READ MORE BLOG 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, which means that other gases can too. In general, any strong smell is a warning sign that something is evaporating. READ MORE
HVAC product highlights Immersion Temperature Transmitter TMI110 The high-accuracy immersion temperature transmitter TMI110 is designed for measuring cooling/heating water temperatures in HVAC automation systems. Weather Transmitter WXT530 Series The perfect mix of accurate air pressure, temperature, humidity, rainfall, wind speed, and wind direction data to measure weather conditions without the expense or magnitude of an automatic weather station. Jade Smart Cloud Combining industrial-grade measurements with secure and reliable wireless monitoring, Vaisala Jade Smart Cloud brings new levels of proficiency and flexibility for professionals. 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 Transmitters 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
Immersion Temperature Transmitter TMI110 The high-accuracy immersion temperature transmitter TMI110 is designed for measuring cooling/heating water temperatures in HVAC automation systems.
Weather Transmitter WXT530 Series The perfect mix of accurate air pressure, temperature, humidity, rainfall, wind speed, and wind direction data to measure weather conditions without the expense or magnitude of an automatic weather station.
Jade Smart Cloud Combining industrial-grade measurements with secure and reliable wireless monitoring, Vaisala Jade Smart Cloud brings new levels of proficiency and flexibility for professionals.
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 Transmitters 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
