the sensor is usually used in gas water heater, gas stove, gas application with magnet valve, etc. We are professional manufactor for thermocouple,magnet valve,ODS and ignition needle ,Which used in gas stove,oven, heater etc. Thermocouple is used with magnet vlave together and become a flameout safety protector. We concern with this business for 12 years. We can provide you the highest quality , ...