The Hobart 00-497301-00001 Thermopile 36" is a gas control component designed to generate the millivolt power needed to operate compatible commercial equipment securily and accurately. Featuring a 36-inch length and two leads with a 250–750mV output, it works by converting heat from the pilot flame into electrical energy that powers the gas valve and control system. This self-generating design helps maintain dependable ignition performance without requiring an external power source.