Features: This electric cooling fan temperature sensor switch activates the fan at 200 degrees and turns it off at 185 degrees, or turns on the fan at 185 degrees and turns it off at 175 degrees. It is designed to measure the temperature of liquids such as water, motor oil, and coolant. Suitable for use with most engine blocks, radiators, manifolds, or water outlets. Constructed of metal for durability and long service life. Designed for applications with a 3/8" NPT port. Specifications: Component: Metal Color: Copper Tone Size: 5.5 x 1.9 cm / 2.17 x 0.75 inches Thread Size: 3/8" NPT Top of Threads to Tip Length: 3.180 cm / 1.25 inches Fan On Temperature: 200 degrees / 185 degrees (optional) Fan Turnoff Temperature: 185 degrees / 175 degrees (optional) Package Includes: 1 x Temperature Control Sensor Note: - Please allow 1-2 cm errors due to manual measurement. Ensure you are comfortable with this before ordering. - Due to differences in monitor displays, the image may not reflect the actual color of the item. - Please carefully confirm the product specifications before purchasing. Thank you for your understanding.