Overview
The Belimo 01CT-5QH is a passive cable temperature sensor featuring a compact 2-inch stainless steel probe and NTC20k thermistor element, designed for tight-space duct and pipe temperature sensing in HVAC systems.
Features
- Short 2-inch stainless steel probe ideal for restricted clearance locations
- High-accuracy NTC20k thermistor element for precise control signal output
- Wide measuring range from -40°F to 300°F
- Green plenum-rated 2-wire cable with tinned copper conductors
- Weather-resistant IP67 / NEMA 4X enclosure rating
Specifications
- Sensor Type: NTC20k Thermistor
- Measuring Range: -40°F to 300°F [-40°C to 150°C]
- Probe Length: 2 inches [50 mm]
- Probe Diameter: 0.24 inches [6 mm]
- Cable Length: 6.5 ft [2 m]
Applications
- Compact air duct and small pipe temperature monitoring
- Immersion temperature measurement in HVAC hydronic lines
- Environmental temperature control in commercial building systems


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