1、Adjustable Thermostat: This electric fan thermostat relay wire kit comes with an adjustable fan thermostat with a stainless steel temperature probe sensor. The probe measures the liquid temperature and provides power to the fan. 2、Wide Control Range: The kit allows for a flexible temperature control range of 32‑248℉ (0‑120℃). The 3 pin design allows the thermostat wiring to be a normally open or normally closed circuit. 3、Versatile Installation: The temperature probe can be installed between radiator fins or in inlet and outlet pipes. The closing temperature is always 15 ℃ lower than the opening temperature. 4、Thermostat Dial: The thermostat dial features both Celsius and Fahrenheit temperature markings. This makes the dial easy to read and interpret, streamlining the temperature management process. 5、Detailed Instructions: The kit includes detailed wiring instructions and diagrams. This ensures a straightforward installation process, making it ideal even for those unfamiliar with car cooling systems.