Features: The product activations fan at 200 degrees and turnoff at 185 degrees. (or turn on the fan at 185 degrees and turnoff the fan at 175 degrees). This electric cooling fan temperature sensor switch is used for measuring the temperature of any liquid such as water, motor oil and coolant. For most engine blocks, radiators, manifold or water outlets. Crafted of metal with long service life. For applications with a 3/8"NPT port. Specifications: Component:Metal Color: Copper Tone Size: 5.5x1.9cm/ 2.17x0.75inch Thread Size: 3/8"NPT Top of Threads to Tip Length: 3.180cm / 1.25" Fan on temperature: 200 degree/185 degree (optional) Fan turnoff temperature: 185 degree/175 degree (optional) Package Includes: 1pcs Temperature Control Sensor note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. 3.Please carefully confirm the product specification before purchasing. Thanks for your understandings.