XMW85
CO2, Humidity and Temperature Transmitter Series XMW85
Smart and reliable indoor air monitoring with Modbus RTU
Request a quoteDownload the datasheet
XMW85
Smart and reliable indoor air monitoring with Modbus RTU
Request a quoteDownload the datasheet
Vaisala XMW85 is a new configurable transmitter, a cost-effective solution for measuring indoor carbon dioxide, humidity, and temperature – designed for smart building and ventilation applications.
Smart ventilation systems rely on accurate real-time data to optimize airflow, reduce energy use, and ensure healthy indoor environments. Whether you’re managing air quality in office buildings, schools, healthcare facilities, or commercial spaces, the XMW85 provides dependable measurement performance with seamless Modbus RTU integration.
The product is available in four variants – with or without a display – and offers flexible configuration to match your specific system requirements. The XMW85 helps you stay in control of your indoor climate while supporting energy-efficient operations.


Choose the model, probes and accessories. Incompatible combinations are blocked as you go; the remaining rules are checked when the instrument is added to the quote.
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A code can be pasted and the configuration builds itself.
They are quoted separately: the instrument need not be configured.
Accurate measurements
Accurate measurement of CO₂, humidity, and temperature
Easy integration
Easy integration via Modbus RTU and configurable variants to suit your project requirements
Optional display
Optional display with metric/non-metric scale for flexible use.
Sustainable efficiency
Supports energy efficiency, healthier indoor environments, and reduced operational risks
Smart ventilation
Ideal for smart ventilation and indoor air quality control in public and commercial buildings
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