Overview
The Belimo 22MT-544 is an active 4-20 mA duct averaging temperature sensor with a 10 ft [3 m] continuous flexible probe. Designed for accurate thermal tracking across duct profiles, it ensures noise-immune signal transmission to BMS controllers.
Features
- Active 4…20 mA current output signal for noise-resistant transmission
- 10 ft [3 m] continuous averaging probe to accurately measure stratified air
- 8 jumper-selectable temperature ranges to match system requirements
- NEMA 4X / IP65 rated weather-resistant enclosure
- Comes with mounting brackets and 1/2″ NPT conduit connector
Specifications
- Probe Length: 10 ft [3 m]
- Output Signal: 4…20 mA
- Sensing Element: Continuous flexible probe
- Supply Voltage: 24 V DC
- Enclosure Rating: NEMA 4X / IP65
Applications
- Averaging air temperature in AHU ductwork and mixing chambers
- Prevention of localized air temperature readout errors in large ducts
- Temperature tracking in commercial heating and cooling air streams


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