1.Used on water heater,washer,etc. 2.FOB price:$1.0~3.0 per piece. 3.Order:1000,000 pieces per year. 4.Certificate:UL,VDE. This type thermostat is mainly used on electric water heater,washer,electric oven,water boiler,fried pan,etc. it is a type of high temperature thermostat,and it's temperature range is from 0c~300C. WY-F model water heater thermostat