Overview
The Belimo 22MT-525 is an active duct averaging temperature sensor equipped with a 20 ft [6 m] continuous sensing probe. It delivers precise 0-5 V or 0-10 V active output signals for large duct cross-sections in commercial HVAC systems.
Features
- Extra-long 20 ft [6 m] flexible probe for complete duct cross-section coverage
- Continuous Pt1000 sensing element eliminates duct temperature stratification
- 8 field-selectable temperature ranges for maximum setup flexibility
- Jumper-selectable active voltage output (0…5 V / 0…10 V)
- Complete with mounting plate and duct installation kit
Specifications
- Probe Length: 20 ft [6 m]
- Sensing Element: Continuous Pt1000 1/3 DIN
- Output Signal: 0…5 V, 0…10 V (selectable)
- Supply Voltage: 24 V AC/DC
- Enclosure Rating: NEMA 4X / IP65
Applications
- Temperature averaging in extra-large air ducts and AHU intake plenums
- Air stratification prevention in commercial ventilation systems
- Central building management system temperature monitoring


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