Overview
The Belimo 22DTH-51MM is a duct sensor equipped with an active voltage humidity output and a passive NTC 10k Type 3 (Precon) thermistor for accurate temperature sensing across HVAC installations.
Features
- Active 0…5 V / 0…10 V configurable humidity output
- Integrated NTC10k3 (Precon) thermistor for passive temperature sensing
- Selectable humidity, enthalpy, and dew point output functions
- NEMA 4X / IP65 enclosure for harsh duct condition protection
Specifications
- Measured Values: Humidity (active) and Temperature (passive)
- Passive Element: NTC10k3 (Precon)
- Probe Length: 5.5 inches [140 mm]
- Output Signal Active: 0…5 V, 0…10 V
- Enclosure Rating: NEMA 4X / IP65
Applications
- Ductwork environmental control using Precon NTC10k3 compatible controllers
- Air handler relative humidity and temperature monitoring


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