Siemens Building Technology 540 660A Room Sensor 340793 762 High Pressure Rated: Optimized for High Pressure Rated: Optimized for R 410A systems with a robust 1 allowing for rapid troubleshooting of pressure switch failures The 540 660A uses a 10K Ohm Type II NTC thermistor High Accuracy Sensing: Reliable thermistor element provides tight tolerances for commercial HVAC room temperature monitoring and airflow control
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Siemens Building Technology 540-660A Room Sensor 340793-762 High Pressure Rated: Optimized for