Overview
The Belimo 22DTH-51ML is a duct humidity and temperature sensor featuring active voltage outputs for humidity and a passive NTC 10k (Type 2) thermistor for temperature measurement in HVAC ducts.
Features
- Active 0…5 V or 0…10 V signal for humidity control
- Passive NTC10k Type 2 thermistor for precise temperature sensing
- Flexible output options including enthalpy and dew point
- Robust NEMA 4X / IP65 rated housing
Specifications
- Measured Values: Humidity (active) and Temperature (passive)
- Passive Element: NTC10k (10k2)
- Probe Length: 5.5 inches [140 mm]
- Output Signal Active: 0…5 V, 0…10 V
- Enclosure Rating: NEMA 4X / IP65
Applications
- Commercial HVAC duct air monitoring compatible with 10k Type 2 controllers
- Building management system environmental sensing


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