Temperature Sensor 3900030901

Part Code: 3900030901
Type: NTC-type temperature sensor
Compatibility: Single-zone mini split systems

The 3900030901 temperature sensor is designed for accurate thermal monitoring in higher-capacity WELLS single-zone mini split systems (18,000–24,000 BTU).

This NTC thermistor relays real-time temperature data to the main control board, enabling precise regulation of compressor speed, fan cycles, and operating modes.

Its encapsulated construction ensures durability, moisture resistance, and consistent readings, making it ideal for both residential and light commercial environments.