thermostat controls temperature using double-metal, with models of flashinsert and so on. It can be fastened to the any place of the body or framework with rivet or aluminium board, measuring temperature by conductionradiation or convection without strong electromagnetic distraction. Among them, compensation thermostat controls temperature and reduces temperature fluctuation by absorbing it own heat of it own heating element. The product is widely used in electrical cooker and heater with reliable performance and simple installation, such as electrical dry ovenelectromagnetic stovefrying pan electrical iron and so on.