Overview
The Belimo 01DT-5BR is a passive duct/immersion temperature sensor designed for deep-insertion applications, featuring a Pt1000 sensing element and a 12-inch (300 mm) probe length. It provides accurate, long-term temperature measurement in commercial HVAC equipment.
Features
- Long 12-inch (300 mm) stainless steel probe for deep duct air cross-section sampling
- Stable Pt1000 passive sensing technology
- Moisture and dust resistant IP65 / NEMA 4X enclosure
- Streamlined terminal block connection for quick wiring
- Suitable for duct insertion and pipe immersion using matching thermowells
Specifications
- Sensor Element: Pt1000
- Probe Length: 12″ [300 mm]
- Probe Diameter: 0.24″ [6 mm]
- Output Signal: Passive resistance
- Enclosure Rating: IP65, NEMA 4X
- Measuring Range: -40°F to 302°F [-40°C to 150°C]
Applications
- Temperature sensing in large commercial air handling unit (AHU) ducts
- Hot water and chilled water pipe temperature sensing in mechanical rooms
- Direct connection to building control controllers and DDC systems


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