Overview
The Belimo 22DTC-5105 is an active duct CO₂ and temperature sensor offering extended measurement ranges up to 5,000 ppm. Utilizing self-calibrating dual-channel technology, it delivers accurate indoor air quality monitoring for 24/7 commercial applications.
Features
- Extended CO₂ measurement range up to 0…5,000 ppm
- Dual-channel NDIR technology for automatic self-calibration
- Active 0…5 V or 0…10 V output signals for both parameters
- Durable NEMA 4X / IP65 enclosure for robust protection
Specifications
- Measured Values: CO₂ (0…5,000 ppm) and Temperature
- Probe Length: 7 inches [180 mm]
- Probe Diameter: 0.77 inches [19.5 mm]
- Output Signal Active: 0…5 V, 0…10 V
- Supply Voltage: 24 V AC/DC
- Enclosure Rating: NEMA 4X / IP65
Applications
- High-occupancy demand ventilation control in retail stores, hospitals, and indoor farming
- Continuous ductwork monitoring of carbon dioxide and temperature


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