Thermostat (1)liquid-expansion thermostat Application The product is easy to be use, and wild used in household appliance fittings. Furthermore, adjusting range bigger than the temp difference smaller than the thers. So the product's life time much longer than the others. Usefullness: water heater, electric baking oven, medical apparatus, and the other electric heater. Temperature range: 30f¬-300f¬; Rated current: ac 220v 16a, 50hz (2)ksd301 kicking thermostat Working principle The double tole kicking thermostat there are carcass to protect totally enclosed. It belong to contacting thermorelay. Its working temp performance is rigid. The life time of the product is long, and radio interference less than others.