Most homes have a thermostat in them. The remote control is the switch that can control the temperature, in the free state, the electric shock is in the closed/disconnected state, when the temperature reaches the set temperature, the bimetal piece is heated to produce internal stress to cut off the circuit, to control the temperature about.When the electrical cooling to the set temperature, the electric shock automatically closed to return to a normal working state. Controls the operation of the equipment to achieve the ideal temperature and energy saving. The reed is also beryllium copper.