Siemens Building Technology 544-339-18 Temperature Sensor
The Siemens 544-339-18 is a high-precision 1k Ohm Platinum RTD (Resistance Temperature Detector) designed for critical air temperature monitoring within HVAC ductwork. Engineered for commercial building automation systems, this single-point sensor features a 18-inch rigid probe constructed to withstand high-velocity airflow while maintaining a ±0.54°F accuracy at ice point. Utilizing a 375a output signal, it ensures seamless integration with Siemens Openline and other North American building controllers. The sensor operates across a wide environmental range of -40°F to 180°F (-40°C to 82°C), making it ideal for discharge air, return air, and mixed air applications. This unit comes standard with a durable NEC-approved 2x4 inch junction box equipped with 1/2-inch knockouts, simplifying field wiring via 20 AWG twisted pair leads. For technicians managing large-scale BAS deployments, the 544-339-18 provides the reliable, drift-free thermal feedback required for optimized duct temperature sensor performance and energy-efficient climate control.
Key Benefits
- Industrial-Grade Precision: Features a high-accuracy 1k Ohm Pt RTD element with a 375-alpha coefficient for stable, long-term temperature sensing.
- Extended Reach: The 18-inch rigid probe is designed for deep-duct insertion, ensuring accurate core-stream thermal readings in larger ductwork.
- Rugged Housing: Includes a standard 2x4 utility box enclosure with knockouts to protect electrical connections in demanding mechanical environments.
- Wide Compatibility: Optimized for use with most major Building Automation Systems (BAS) and HVAC controllers requiring a resistance temperature signal.
- Resilient Design: Rated for extreme temperatures between -40°F and 180°F, suitable for both heating and cooling cycle monitoring.
Common Questions
What is the accuracy of the Siemens 544-339-18 sensor?
This 1k Ohm RTD provides a high degree of precision, typically yielding an accuracy of +/- 0.54°F at 32°F, which is essential for tight PID loop control in commercial HVAC systems.
Can this sensor be used in high-moisture air streams?
While designed for duct air applications, the rigid probe and junction box construction provide robust protection; however, for saturated environments, proper sealing of the conduit knockouts is recommended.
Does this unit require a separate transmitter?
The 544-339-18 is a passive resistance sensor. It outputs a direct 1k Ohm signal that is interpreted by the analog input of your building controller without the need for an external transducer.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Siemens Building Technology 544-339-18 Temperature Sensor
The Siemens 544-339-18 is a high-precision 1k Ohm Platinum RTD (Resistance Temperature Detector) designed for critical air temperature monitoring within HVAC ductwork. Engineered for commercial building automation systems, this single-point sensor features a 18-inch rigid probe constructed to withstand high-velocity airflow while maintaining a ±0.54°F accuracy at ice point. Utilizing a 375a output signal, it ensures seamless integration with Siemens Openline and other North American building controllers. The sensor operates across a wide environmental range of -40°F to 180°F (-40°C to 82°C), making it ideal for discharge air, return air, and mixed air applications. This unit comes standard with a durable NEC-approved 2x4 inch junction box equipped with 1/2-inch knockouts, simplifying field wiring via 20 AWG twisted pair leads. For technicians managing large-scale BAS deployments, the 544-339-18 provides the reliable, drift-free thermal feedback required for optimized duct temperature sensor performance and energy-efficient climate control.
Key Benefits
- Industrial-Grade Precision: Features a high-accuracy 1k Ohm Pt RTD element with a 375-alpha coefficient for stable, long-term temperature sensing.
- Extended Reach: The 18-inch rigid probe is designed for deep-duct insertion, ensuring accurate core-stream thermal readings in larger ductwork.
- Rugged Housing: Includes a standard 2x4 utility box enclosure with knockouts to protect electrical connections in demanding mechanical environments.
- Wide Compatibility: Optimized for use with most major Building Automation Systems (BAS) and HVAC controllers requiring a resistance temperature signal.
- Resilient Design: Rated for extreme temperatures between -40°F and 180°F, suitable for both heating and cooling cycle monitoring.
Common Questions
What is the accuracy of the Siemens 544-339-18 sensor?
This 1k Ohm RTD provides a high degree of precision, typically yielding an accuracy of +/- 0.54°F at 32°F, which is essential for tight PID loop control in commercial HVAC systems.
Can this sensor be used in high-moisture air streams?
While designed for duct air applications, the rigid probe and junction box construction provide robust protection; however, for saturated environments, proper sealing of the conduit knockouts is recommended.
Does this unit require a separate transmitter?
The 544-339-18 is a passive resistance sensor. It outputs a direct 1k Ohm signal that is interpreted by the analog input of your building controller without the need for an external transducer.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens 544-339-18 is a high-precision 1k Ohm Platinum RTD (Resistance Temperature Detector) designed for critical air temperature monitoring within HVAC ductwork. Engineered for commercial building automation systems, this single-point sensor features a 18-inch rigid probe constructed to withstand high-velocity airflow while maintaining a ±0.54°F accuracy at ice point. Utilizing a 375a output signal, it ensures seamless integration with Siemens Openline and other North American building controllers. The sensor operates across a wide environmental range of -40°F to 180°F (-40°C to 82°C), making it ideal for discharge air, return air, and mixed air applications. This unit comes standard with a durable NEC-approved 2x4 inch junction box equipped with 1/2-inch knockouts, simplifying field wiring via 20 AWG twisted pair leads. For technicians managing large-scale BAS deployments, the 544-339-18 provides the reliable, drift-free thermal feedback required for optimized duct temperature sensor performance and energy-efficient climate control.
Key Benefits
- Industrial-Grade Precision: Features a high-accuracy 1k Ohm Pt RTD element with a 375-alpha coefficient for stable, long-term temperature sensing.
- Extended Reach: The 18-inch rigid probe is designed for deep-duct insertion, ensuring accurate core-stream thermal readings in larger ductwork.
- Rugged Housing: Includes a standard 2x4 utility box enclosure with knockouts to protect electrical connections in demanding mechanical environments.
- Wide Compatibility: Optimized for use with most major Building Automation Systems (BAS) and HVAC controllers requiring a resistance temperature signal.
- Resilient Design: Rated for extreme temperatures between -40°F and 180°F, suitable for both heating and cooling cycle monitoring.
Common Questions
What is the accuracy of the Siemens 544-339-18 sensor?
This 1k Ohm RTD provides a high degree of precision, typically yielding an accuracy of +/- 0.54°F at 32°F, which is essential for tight PID loop control in commercial HVAC systems.
Can this sensor be used in high-moisture air streams?
While designed for duct air applications, the rigid probe and junction box construction provide robust protection; however, for saturated environments, proper sealing of the conduit knockouts is recommended.
Does this unit require a separate transmitter?
The 544-339-18 is a passive resistance sensor. It outputs a direct 1k Ohm signal that is interpreted by the analog input of your building controller without the need for an external transducer.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
