Overview
The Belimo 22UT-54 is an active outdoor temperature sensor equipped with a 1-inch external probe and a 4-20 mA output signal. Built for outdoor environments, it provides reliable noise-immune temperature data for HVAC control systems.
Features
- Active 4…20 mA current output signal for long-distance signal integrity
- External mounted stainless steel probe for fast outdoor temperature response
- 8 jumper-selectable measuring ranges for flexible application tuning
- Durable NEMA 4X / IP65 housing to withstand outdoor weather elements
- High accuracy active temperature measurement (±0.5°C @ 21°C)
Specifications
- Probe Length: 1 inch [25 mm]
- Probe Diameter: 0.24 inches [6 mm]
- Output Signal: 4…20 mA
- Accuracy: ±0.5°C @ 21°C [±0.9°F @ 70°F]
- Enclosure Rating: NEMA 4X / IP65
Applications
- Outdoor temperature measurement for commercial HVAC plant automation
- Weather tracking for agricultural facilities, greenhouses, and cold storage
- Outdoor air reset and economizer control in building automation networks



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