Overview
The Belimo 01DT-5QH is a compact passive duct/immersion temperature sensor featuring a 2-inch probe and an NTC20k thermistor element. It provides reliable temperature measurements in shallow ducts, tight spaces, or specialized pipe fittings.
Features
- Compact 2-inch stainless steel probe ideal for tight installations
- High-precision NTC20k passive sensing element
- Robust NEMA 4X / IP65 enclosure for protection against dust and moisture
- Spring-loaded terminal connections for fast wiring
Specifications
- Sensor Type: NTC20k
- Probe Length: 2″ [50 mm]
- Probe Diameter: 0.24″ [6 mm]
- Enclosure Rating: NEMA 4X / IP65
- Measuring Range: -60°F to 300°F [-50°C to 150°C]
Applications
- Shallow duct or small pipe temperature sensing in HVAC systems
- Compact thermowell immersion applications in building automation


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