We use a thermal switch everyday. The thermal switch is also referred to as a temperature switch or a thermostat. It is used to control temperature. It is used by us everyday in our kettles when we boil our water, in our cooker when we are cooking something, in our hotplates when we are frying something and of course in our refrigerators. The thermal switch or temperature switch utilizes a tungsten strip that is very sensitive to heat. This piece of metal is calibrated to stand various degree of heat. All the user had to do is to set the [...] Read more »