Vaisala XMW85 CO₂, Humidity and Temperature Transmitter
The Vaisala XMW85 CO₂, Humidity and Temperature Transmitter series supports smart ventilation with Modbus RTU, low-power CARBOCAP® sensors, and easy installation. Available in 3-in-1 and 2-in-1 models.
The Vaisala XMW85 CO₂ humidity transmitter provides accurate and reliable measurement of carbon dioxide, relative humidity, and temperature for HVAC, building automation, and indoor air quality monitoring. This multi-parameter transmitter helps optimise ventilation, improve occupant comfort, and support energy-efficient building operation.
Designed for wall mounting, the XMW85 delivers stable performance in commercial buildings, schools, healthcare facilities, and laboratories. Its advanced sensor technology ensures long-term stability and low maintenance, making it suitable for critical indoor environmental monitoring applications.
As part of the Vaisala environmental monitoring range, the XMW85 integrates seamlessly with building management and automation systems. For full technical details, please refer to the datasheet.
This reliable solution supports precise indoor air quality monitoring and compliance across Perth and Western Australia using the Vaisala XMW85 CO₂ humidity transmitter.


