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 in elevated CO2 levels, causing drowsiness and decreased productivity. Good indoor air quality can be achieved based on occupancy levels. Energy is saved by minimizing the use of unconditioned outside air. 5-year warranty is valid for instruments purchased in 2021 and beyond. Buy Now Datasheet Contact us Accurate and stable For accurate and stable HVAC measurements, the wall-mounted Vaisala CARBOCAP® Carbon Dioxide and Temperature Transmitter Series GMW80 provides the best stability and reliability on the market, up to 15 years. These indoor air quality sensors designed for standard, demand-controlled ventilation applications. The GMW80 is ideal for buildings occupied 24/7. The CO2 measurement of the GMW80 series is based on a second-generation CARBOCAP® sensor, which uses a novel, microglow light source instead of an incandescent light bulb for a longer trouble-free lifetime. The internal reference in the CO2 sensor guarantees the best stability and operation also in constantly occupied buildings without frequent readjustments. The CARBOCAP® sensors give correct CO2 measurements immediately when powered on as they have a built-in reference measurement. Proper operation can be verified immediately after snapping on the device cover. Available models The following product models are available: GMW83RP, GMW83DRP, GMW83, GMW83A, GMW83D, GMW84, GMW84S, GMW87 and GMW88. View all our instruments for HVAC applications. Click here to download bid specs for USA. Features Cost-efficient, affordable Reliable and maintenance-free operation for up to 15 years Superior stability due to 2nd generation proprietary CARBOCAP technology Improved accuracy due to low self-heating of microglow light source Easy to install, easy to use The internal reference in the CO2 sensor guarantees the best stability and operation even in buildings occupied 24/7 Ideal for demand-controlled ventilation Key benefits Cost-efficient The GMW80 series transmitters include a number of subtle design features allowing for quick and easy installation and commissioning, which saves installation time and money. They are ready for use immediately - the transmitters will show correct CO2 readings right after installation without any adjustment period. Versatile Choose from eight transmitter options to measure CO2, temperature and/or humidity, with or without a display or LED indicator or current outputs. Product documentation Datasheets User guides More in Docs.vaisala.com More downloads Application Note: DCV Savings through Well-Chosen Technology (233.09 KB) Application Note: How to measure carbon dioxide (1.64 MB) Technology Description: Vaisala CARBOCAP® measurement sensor for demanding environments (172.2 KB) Brochure: HVAC product brochure (5.5 MB) Product Resources Blog Common pitfalls when installing HVAC wall sensors The most important thing to remember when installing wall sensors is that they are intended for measuring the conditions that humans are experiencing in a room. Learn more Customer case Vaisala CARBOCAP® Sensor for measuring carbon dioxide The CARBOCAP® story began in 1992, when micromechanical sensors were being intensively researched at Vaisala. The groundbreaking idea of miniaturizing the Fabry-Perot Interferometer (FPI) was born, leading to collaborative development work with VTT. Learn more
Application Note: DCV Savings through Well-Chosen Technology (233.09 KB) Application Note: How to measure carbon dioxide (1.64 MB) Technology Description: Vaisala CARBOCAP® measurement sensor for demanding environments (172.2 KB) Brochure: HVAC product brochure (5.5 MB)
