Temperature Sensor 3900007201

Part Code: 3900007201
Type: NTC temperature sensor
Series: T-Unix

The 3900007201 temperature sensor is engineered for precise monitoring of coil or return air temperature in WELLS T-Unix air handler units.

As an NTC thermistor, it communicates thermal data to the main PCB to adjust system behavior such as fan speed, expansion valve control, and compressor operation.

Optimized for use in systems charged with R-410A, it ensures stable performance, accurate readings, and long-term reliability.