Overview
The Belimo 22DT-54N is an active duct and immersion temperature sensor with a 6-inch stainless steel probe and a 4-20 mA current output. It provides highly reliable temperature measurement across standard duct sizes and hydronic lines.
Features
- 6-inch stainless steel probe suited for standard duct dimensions
- 4…20 mA analog current output for noise-immune remote transmission
- 8 selectable temperature ranges configured via onboard jumper
- Weather-resistant NEMA 4X / IP65 housing
- Compatible with brass and stainless steel thermowells
Specifications
- Probe Length: 6 inches [150 mm]
- Probe Diameter: 0.24 inches [6 mm]
- Output Signal: 4…20 mA
- Supply Voltage: DC 24 V
- Enclosure Rating: NEMA 4X / IP65
- Measured Value: Temperature
Applications
- Ductwork air temperature monitoring in commercial buildings
- Chilled and hot water pipe temperature sensing with thermowell
- Real-time thermal control feedback for HVAC automation


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