
Siemens Building Technology QAA2212.EWSN Sensor
The Siemens Building Technology QAA2212.EWSN is a professional-grade Room Temperature Sensor engineered for high-precision environmental monitoring in commercial and industrial HVACR applications. This passive RTD sensor utilizes a Platinum 1k Ohm (385 Alpha) sensing element to provide stable and accurate resistance feedback to the building automation system (BAS). Designed with a clean, no-display white enclosure featuring the Siemens logo, it is ideal for installations where a tamper-resistant, low-profile wall-mount temperature sensor is required. The QAA2212.EWSN operates within a standard range of 32 to 122 degrees Fahrenheit (0 to 50 degrees Celsius), ensuring reliable data for climate control loops. Utilizing a heavy-duty terminal block for field wiring, this Pt1000 sensor facilitates a secure connection and fast response times due to strategically placed housing ventilation. It is fully compatible with any controller capable of reading a 1k Ohm Pt RTD signal, making it a versatile choice for retrofit or new construction projects.
Key Benefits- High Accuracy: The Platinum 1k Ohm RTD element offers superior stability and precision compared to standard thermistors.
- Universal Compatibility: Standardized 385a output signal ensures seamless integration with Siemens Desigo and other third-party BAS controllers.
- Professional Aesthetics: The sleek, no-display design prevents unauthorized adjustments and maintains a clean architectural look.
- Durable Construction: NEMA 1 rated enclosure with easy terminal block access for efficient field termination by technicians.
- Optimized Airflow: Engineered ventilation slots maximize air circulation around the element for rapid detection of temperature changes.
What is the sensing element used in the QAA2212.EWSN?
This model uses a Platinum 1k Ohm RTD with a 385 coefficient, which is industry-standard for precision temperature measurement in commercial HVAC systems.
Does this sensor require a dedicated power supply?
No, as a passive RTD sensor, it provides a resistance-based output signal and does not require an external power source to operate.
Can this be mounted on a standard electrical box?
Yes, the housing is designed for direct mounting to a standard 2" x 4" electrical box or directly to drywall using the included hardware.
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 QAA2212.EWSN Sensor
The Siemens Building Technology QAA2212.EWSN is a professional-grade Room Temperature Sensor engineered for high-precision environmental monitoring in commercial and industrial HVACR applications. This passive RTD sensor utilizes a Platinum 1k Ohm (385 Alpha) sensing element to provide stable and accurate resistance feedback to the building automation system (BAS). Designed with a clean, no-display white enclosure featuring the Siemens logo, it is ideal for installations where a tamper-resistant, low-profile wall-mount temperature sensor is required. The QAA2212.EWSN operates within a standard range of 32 to 122 degrees Fahrenheit (0 to 50 degrees Celsius), ensuring reliable data for climate control loops. Utilizing a heavy-duty terminal block for field wiring, this Pt1000 sensor facilitates a secure connection and fast response times due to strategically placed housing ventilation. It is fully compatible with any controller capable of reading a 1k Ohm Pt RTD signal, making it a versatile choice for retrofit or new construction projects.
Key Benefits- High Accuracy: The Platinum 1k Ohm RTD element offers superior stability and precision compared to standard thermistors.
- Universal Compatibility: Standardized 385a output signal ensures seamless integration with Siemens Desigo and other third-party BAS controllers.
- Professional Aesthetics: The sleek, no-display design prevents unauthorized adjustments and maintains a clean architectural look.
- Durable Construction: NEMA 1 rated enclosure with easy terminal block access for efficient field termination by technicians.
- Optimized Airflow: Engineered ventilation slots maximize air circulation around the element for rapid detection of temperature changes.
What is the sensing element used in the QAA2212.EWSN?
This model uses a Platinum 1k Ohm RTD with a 385 coefficient, which is industry-standard for precision temperature measurement in commercial HVAC systems.
Does this sensor require a dedicated power supply?
No, as a passive RTD sensor, it provides a resistance-based output signal and does not require an external power source to operate.
Can this be mounted on a standard electrical box?
Yes, the housing is designed for direct mounting to a standard 2" x 4" electrical box or directly to drywall using the included hardware.
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 Building Technology QAA2212.EWSN is a professional-grade Room Temperature Sensor engineered for high-precision environmental monitoring in commercial and industrial HVACR applications. This passive RTD sensor utilizes a Platinum 1k Ohm (385 Alpha) sensing element to provide stable and accurate resistance feedback to the building automation system (BAS). Designed with a clean, no-display white enclosure featuring the Siemens logo, it is ideal for installations where a tamper-resistant, low-profile wall-mount temperature sensor is required. The QAA2212.EWSN operates within a standard range of 32 to 122 degrees Fahrenheit (0 to 50 degrees Celsius), ensuring reliable data for climate control loops. Utilizing a heavy-duty terminal block for field wiring, this Pt1000 sensor facilitates a secure connection and fast response times due to strategically placed housing ventilation. It is fully compatible with any controller capable of reading a 1k Ohm Pt RTD signal, making it a versatile choice for retrofit or new construction projects.
Key Benefits- High Accuracy: The Platinum 1k Ohm RTD element offers superior stability and precision compared to standard thermistors.
- Universal Compatibility: Standardized 385a output signal ensures seamless integration with Siemens Desigo and other third-party BAS controllers.
- Professional Aesthetics: The sleek, no-display design prevents unauthorized adjustments and maintains a clean architectural look.
- Durable Construction: NEMA 1 rated enclosure with easy terminal block access for efficient field termination by technicians.
- Optimized Airflow: Engineered ventilation slots maximize air circulation around the element for rapid detection of temperature changes.
What is the sensing element used in the QAA2212.EWSN?
This model uses a Platinum 1k Ohm RTD with a 385 coefficient, which is industry-standard for precision temperature measurement in commercial HVAC systems.
Does this sensor require a dedicated power supply?
No, as a passive RTD sensor, it provides a resistance-based output signal and does not require an external power source to operate.
Can this be mounted on a standard electrical box?
Yes, the housing is designed for direct mounting to a standard 2" x 4" electrical box or directly to drywall using the included hardware.
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.












