PRECISE TEMPERATURE CONTROL, SAVING AND GAS SAVING: thermocouple technology, accurately sensing temperature changes, with advanced temperature control system EFFICIENT CONVERSION: The gas heater thermocouple is made of high-quality metal material to the efficient conversion of heat into electricity, providing a stable and safe ignition source for your domestic gas water heater. Designed for and durability, reducing the hassle of frequent replacement MULTI-PROTECTION, PEACE OF MIND: Built-in fault self-detection mechanism, once the thermocouple or thermopile is detected to be working abnormally, it immediately cuts off the gas supply, prevents gas leakage, protects your family's safety, and allows you to use it without worry SIMPLE INSTALLATION, PLUG AND PLAY: Standard size design, suitable for a variety of models of gas , no professional tools, easy to replace the old parts, gas parts thermocouple and gas stove water heater thermocouple and solenoid valve with the use of the instant restoration of heating function HIGH TEMPERATURE THERMOCOUPLE:Tthermocouple with thermopile assembly is high temperature --- voltage > 20mV, thermocouple temperature, -200 - 850 degrees Celsius, with 5 nuts gas parts thermocouple gas valve, gas fireplace thermocouple is designed for temperature sensing and measurement