Koolance SEN-AP008G Coolant Temperature Sensor Plug, 10K Ohm Coolant thermistor temperature sensor compatible with Koolance multi-sensor systems. Sensor fitting is G 1/4 BSPP (parallel) threaded. Wire length = 30" (76cm). NOTE: This sensor will only work with Koolance products which use 10K Ohm @25&deg;C sensors (first introduced in 2011). Additional Specifications &bullet; Materials: Nickel-Plated Brass, Stainless Steel, EPDM &bullet; Max Temperature: 120&deg;C (248&deg;F) .