
Siemens Building Technology 535-741-18 Temperature Sensor
The Siemens Building Technology 535-741-18 Temperature Sensor is a professional-grade duct point temperature sensor designed for precise climate monitoring within forced-air HVAC systems. Featuring a 100k Ohm thermistor output signal (NTC Type II), this sensor provides high-resolution data feedback to Siemens building automation controllers or any compatible North American BMS. The 18-inch rigid probe is constructed from durable galvanized steel tubing, ensuring optimal depth for accurate cross-sectional air temperature readings in larger supply or return air ducts.
Built for field reliability, this unit operates across a wide temperature range of -40°F to 180°F (-40°C to 82°C), maintaining a tight measurement accuracy of ±0.50°F at the 77°F calibration point. The sensor assembly includes a standard NEC-approved 2x4 inch electrical conduit box with 1/2-inch knockouts, facilitating a familiar installation process that requires no specialized tools. The lead-wire connection type ensures a secure interface for 20 AWG twisted, shielded cable pairs, minimizing signal interference in high-voltage mechanical environments.
- Wide Operating Range: Handles extreme -40°F to 180°F temperatures, making it suitable for both morning warm-up and discharge air monitoring.
- High-Impedance Signal: The 100k Ohm NTC thermistor element reduces the impact of lead wire resistance on accuracy.
- Industrial Build: Features an 18-inch rigid probe with a galvanized steel enclosure for longevity in high-velocity ductwork.
- Seamless Integration: Compatible with many Siemens Industry, Inc. controllers and standard building automation systems.
Common Questions
Is this sensor suitable for measuring liquid temperature in pipes?
No, the 535-741-18 is a dedicated duct temperature sensor with a 2x4 box. For fluid applications, an immersion-style sensor with a thermowell is required.
Can I use this with non-Siemens controllers?
Yes, provided your controller is configured to accept a 100k Ohm NTC Type II thermistor resistance curve.
Does this unit provide an averaging signal?
This is a single-point sensor. For ducts with significant temperature stratification, a flexible averaging sensor should be utilized instead.
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 535-741-18 Temperature Sensor
The Siemens Building Technology 535-741-18 Temperature Sensor is a professional-grade duct point temperature sensor designed for precise climate monitoring within forced-air HVAC systems. Featuring a 100k Ohm thermistor output signal (NTC Type II), this sensor provides high-resolution data feedback to Siemens building automation controllers or any compatible North American BMS. The 18-inch rigid probe is constructed from durable galvanized steel tubing, ensuring optimal depth for accurate cross-sectional air temperature readings in larger supply or return air ducts.
Built for field reliability, this unit operates across a wide temperature range of -40°F to 180°F (-40°C to 82°C), maintaining a tight measurement accuracy of ±0.50°F at the 77°F calibration point. The sensor assembly includes a standard NEC-approved 2x4 inch electrical conduit box with 1/2-inch knockouts, facilitating a familiar installation process that requires no specialized tools. The lead-wire connection type ensures a secure interface for 20 AWG twisted, shielded cable pairs, minimizing signal interference in high-voltage mechanical environments.
- Wide Operating Range: Handles extreme -40°F to 180°F temperatures, making it suitable for both morning warm-up and discharge air monitoring.
- High-Impedance Signal: The 100k Ohm NTC thermistor element reduces the impact of lead wire resistance on accuracy.
- Industrial Build: Features an 18-inch rigid probe with a galvanized steel enclosure for longevity in high-velocity ductwork.
- Seamless Integration: Compatible with many Siemens Industry, Inc. controllers and standard building automation systems.
Common Questions
Is this sensor suitable for measuring liquid temperature in pipes?
No, the 535-741-18 is a dedicated duct temperature sensor with a 2x4 box. For fluid applications, an immersion-style sensor with a thermowell is required.
Can I use this with non-Siemens controllers?
Yes, provided your controller is configured to accept a 100k Ohm NTC Type II thermistor resistance curve.
Does this unit provide an averaging signal?
This is a single-point sensor. For ducts with significant temperature stratification, a flexible averaging sensor should be utilized instead.
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.
Product Information
Product Information
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Description
The Siemens Building Technology 535-741-18 Temperature Sensor is a professional-grade duct point temperature sensor designed for precise climate monitoring within forced-air HVAC systems. Featuring a 100k Ohm thermistor output signal (NTC Type II), this sensor provides high-resolution data feedback to Siemens building automation controllers or any compatible North American BMS. The 18-inch rigid probe is constructed from durable galvanized steel tubing, ensuring optimal depth for accurate cross-sectional air temperature readings in larger supply or return air ducts.
Built for field reliability, this unit operates across a wide temperature range of -40°F to 180°F (-40°C to 82°C), maintaining a tight measurement accuracy of ±0.50°F at the 77°F calibration point. The sensor assembly includes a standard NEC-approved 2x4 inch electrical conduit box with 1/2-inch knockouts, facilitating a familiar installation process that requires no specialized tools. The lead-wire connection type ensures a secure interface for 20 AWG twisted, shielded cable pairs, minimizing signal interference in high-voltage mechanical environments.
- Wide Operating Range: Handles extreme -40°F to 180°F temperatures, making it suitable for both morning warm-up and discharge air monitoring.
- High-Impedance Signal: The 100k Ohm NTC thermistor element reduces the impact of lead wire resistance on accuracy.
- Industrial Build: Features an 18-inch rigid probe with a galvanized steel enclosure for longevity in high-velocity ductwork.
- Seamless Integration: Compatible with many Siemens Industry, Inc. controllers and standard building automation systems.
Common Questions
Is this sensor suitable for measuring liquid temperature in pipes?
No, the 535-741-18 is a dedicated duct temperature sensor with a 2x4 box. For fluid applications, an immersion-style sensor with a thermowell is required.
Can I use this with non-Siemens controllers?
Yes, provided your controller is configured to accept a 100k Ohm NTC Type II thermistor resistance curve.
Does this unit provide an averaging signal?
This is a single-point sensor. For ducts with significant temperature stratification, a flexible averaging sensor should be utilized instead.
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.












