Thermostat , according to temperature changes in the work environment, internal physical deformation occurs in the switch, resulting in some of the special effects, produce a series of automatic control element is turned on or off the action, also called temperature control switches, temperature protection , temperature controller, referred to the thermostat. Or through temperature protection temperature reached a temperature controller, temperature controller issues switching commands to control the operation of the equipment in order to achieve the desired temperature and energy savings, its wide range of applications, depending on the type of thermostat Application appliances, motors, cooling or heating, and many other products.