Specifications:

• Normally closed automotive engine thermostat switch. • Dual pin 1/4" inch NPT brass thread-in temperature probe. • Grounds accessory upon ignition and turns off at 120'F. • When the temperature drops below 105'F the switch will re-close. • Threads into the engine block, radiator, manifold, or water outlet, etc. • Measures the temperature of any liquid including motor oil. • Great for a cold start advance or engine heaters of any kind. • Length from the top of the probe threads to the tip is 0.5" inches.