Overview
The Belimo 01CT-5QL is a passive cable temperature sensor equipped with a 4-inch probe, mounting flange, and NTC20k thermistor element for accurate air and liquid temperature monitoring in HVAC systems.
Features
- 4-inch stainless steel probe for standard air duct applications
- Included mounting flange for fast and simple duct surface mounting
- Precision NTC20k thermistor output for reliable control signals
- Rugged design rated IP67 / NEMA 4X for enhanced durability
- Flexible 2-meter plenum-rated cable
Specifications
- Sensor Type: NTC20k Thermistor
- Measuring Range: -40°F to 300°F [-40°C to 150°C]
- Probe Length: 4 inches [100 mm]
- Probe Diameter: 0.24 inches [6 mm]
- Cable Length: 6.5 ft [2 m]
Applications
- HVAC air duct temperature monitoring in AHUs and VAV systems
- Hydronic pipe surface or immersion temperature sensing
- Building management system climate control loops


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