[Stainless Steel Temperature Probe Sensor]: 12V Adjustable Fan Thermostat with Stainless Steel Temperature Probe Sensor. The probe measures the liquid or interface temperature and supplies power to the fan. [Temperature Control Range]: Flexible on/off temperature control range 32-248°F (0-120°C). [Installation]: Probes can be installed between radiator fins or in inlet and outlet pipes. Thermostat wire length is 1m (39.37 inches). Professional installation is highly recommended. [Features]: The 3-pin design allows the thermostat to be connected as a normally open or normally closed circuit. The closing temperature is always 15 degrees lower than the opening temperature. The thermostatic dial has Celsius and Fahrenheit markings. Color: Black Material: Plastic + Metal Package Contents: 1 x Radiator Fan Thermostat Control Relay Wire Kit Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement may vary by +/- 1-3 cm.