Description
The Siemens Building Technology 544-577-25 is a precision immersion temperature sensor engineered for building automation and hydronic HVAC applications. Utilizing a Platinum RTD (Resistance Temperature Detector) element with a 1,000 Ohm resistance at 0°C, this sensor delivers highly accurate and stable temperature readings across a wide operating range.
Key Features
- Sensor Type: Platinum RTD (Pt RTD), 1k Ohm
- Output Signal: 375a
- Temperature Range: 0°F to 250°F (-18°C to 121°C)
- Probe Length: 2.5 inches
- Thermowell included for easy installation and serviceability
- Connection Type: Leads
Application
Designed for immersion in pipes, tanks, and hydronic systems, the 544-577-25 accurately monitors fluid temperatures in chilled water, hot water, and condenser water loops. The included thermowell allows the sensor to be removed or replaced without draining the system, minimizing downtime and simplifying maintenance.
Why Choose the Siemens 544-577-25?
- Platinum RTD technology ensures long-term stability and repeatability
- 1k Ohm resistance provides high sensitivity and reduced lead resistance error
- Compact 2.5″ probe length suits a wide range of pipe sizes and installation configurations
- Thermowell inclusion protects the sensing element and enables in-service maintenance
- Lead wire connection type offers flexible field wiring options
- Backed by Siemens Building Technology’s proven quality and reliability
Specifications
- Brand: Siemens Building Technology
- SKU: 544-577-25
- Sensor Element: Platinum RTD (Pt RTD)
- Resistance: 1,000 Ohm (1k Ohm)
- Output Signal: 375a
- Temperature Range: 0°F to 250°F (-18°C to 121°C)
- Probe Length: 2.5 inches
- Thermowell: Included
- Connection Type: Leads
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