Volt adjustable fan thermostat w/ stainless temperature probe sensor. Probe measures liquid or contact temperature and sends power to the fan. Flexible turn-on/turn-off temperature control range of 32-248 (0-120 ). 3-pin design allows thermostat to be wired as a normally open OR closed circuit. Probe can be mounted between radiator fins or inside inlet/outlet tube. Turn-off temperature is always 15 degrees less than turn-on. Thermostat dial has both Celsius and Fahrenheit temperature markings. Capillary thermostat wire is 30 inches in length. Professional installation is highly recommended Colour: as shown Material: ABS+metal Package Contents: 1 Set * Radiator Fan Thermostat Control Relay Wire Kit (21Pcs) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.