Description
Siemens 544-343-18 Duct Temperature Sensor Overview
The Siemens 544-343-18 is a precision duct-mount temperature sensor engineered for reliable performance in building automation and HVAC control applications. Utilizing a Platinum RTD (Pt RTD) sensing element with a 1k Ohm resistance output, this sensor delivers accurate, repeatable temperature measurements across a wide operating range. Its 375a output signal makes it compatible with a broad range of building automation system (BAS) controllers and DDC panels.
Key Features
- Sensing Technology: Platinum RTD (Pt RTD) for high accuracy and long-term stability
- Resistance Output: 1k Ohm
- Output Signal: 375a
- Temperature Range: -40°F to 180°F (-40°C to 82°C)
- Probe Length: 18 inches, rigid construction for secure duct insertion
- Connection Type: Lead wire termination for straightforward field wiring
- Display: None — designed for integration with external controllers or displays
- Mounting: Duct-mount configuration suitable for supply, return, and mixed-air applications
Application & Benefits
The 544-343-18 is ideal for commercial HVAC systems requiring dependable duct air temperature monitoring. The rigid 18-inch probe ensures accurate averaging across the duct cross-section, while the Pt RTD element provides superior linearity and repeatability compared to thermistor-based sensors. The lead-wire connection simplifies installation and integration with Siemens APOGEE, DESIGO, and compatible third-party BAS platforms.
Specifications
- SKU: 544-343-18
- Brand: Siemens Building Technology
- Sensor Type: Platinum RTD (Pt RTD)
- Resistance: 1k Ohm
- Output Signal: 375a
- Temperature Range: -40°F to 180°F (-40°C to 82°C)
- Probe Length: 18 inches (rigid)
- Connection Type: Leads
- Display: None
- Mounting Style: Duct
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