Description
The Siemens Building Technology 544-578 is a precision outdoor temperature sensor engineered for reliable performance in demanding building automation and HVAC control applications. Utilizing a Platinum RTD (Pt RTD) sensing element with a 1,000 Ohm resistance at 0°C, this sensor delivers accurate, stable temperature readings across a wide operating range — making it an ideal choice for outdoor air temperature monitoring in commercial and industrial environments.
Key Features
- Platinum RTD (Pt RTD) sensing technology for high accuracy and long-term stability
- 1,000 Ohm (1k Ohm) resistance output for compatibility with standard BAS/DDC controllers
- 375a output signal for seamless integration into building automation systems
- Wide temperature measurement range: -40°F to 150°F (-40°C to 65°C)
- Lead wire connection type for straightforward field wiring
- No display — designed for controller-based monitoring and remote readout
- Rugged outdoor-rated construction for reliable year-round performance
Specifications
- SKU: 544-578
- Brand: Siemens Building Technology
- Sensor Type: Platinum RTD (Pt RTD)
- Resistance: 1,000 Ohm (1k Ohm)
- Output Signal: 375a
- Temperature Range: -40°F to 150°F (-40°C to 65°C)
- Connection Type: Leads
- Display: None
- Application: Outdoor / Ambient Air Temperature Sensing
Applications
- Outdoor ambient air temperature monitoring
- Building automation system (BAS) and DDC controller integration
- Energy management and economizer control
- HVAC system optimization and outdoor reset controls
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