Description
The Belimo 22DTH-51M is a professional-grade combination duct humidity and temperature sensor engineered for commercial HVAC and building automation applications. Designed for direct duct installation, it provides accurate, simultaneous measurement of both relative humidity and temperature, transmitting each reading via selectable 0–5 V or 0–10 V analog output signals — making it fully compatible with a wide range of building automation systems (BAS) and DDC controllers.
Key Features
- Dual-parameter sensing: measures both relative humidity and temperature in a single duct-mount device
- Dual analog output options: 0–5 V and 0–10 V signals for flexible BAS and DDC integration
- Duct-mount design with insertion probe for accurate in-duct air stream measurement
- Compact, rugged housing suitable for commercial HVAC ductwork
- Simplifies wiring and installation by combining two sensing functions in one unit
- Backed by Belimo’s reputation for precision sensing and long-term reliability
Applications
- Commercial HVAC air handling units (AHUs)
- Building automation and energy management systems
- VAV and constant-volume air distribution systems
- Humidity and temperature monitoring in supply, return, and mixed-air ducts
- Demand-controlled ventilation (DCV) strategies
Why Choose the Belimo 22DTH-51M?
Belimo is a globally recognized leader in HVAC actuator and sensor technology. The 22DTH-51M eliminates the need for separate humidity and temperature sensors, reducing installation time, material costs, and potential wiring errors. Its dual-output capability ensures seamless compatibility with virtually any modern building automation platform. Whether you’re commissioning a new commercial building or upgrading an existing system, the 22DTH-51M delivers the accuracy and reliability that HVAC professionals demand.
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