... temperature ;2-Operating life: no less than 100,000times E- series Thermostat features:1) Designed temperature range: -30°C ~ 330°C2 ... 100,000times11) Widely used for electric water heater, washer, electric oven, fried pan,water boiler, etc. 12) All of our thermostats ... 200 varieties of thermostat with different styles ,colors and materials . oven thermostat