Intelligent Timer Switch, 220V Mechanical Timer Multi-Function Countdown Timer Switch for Controlling,Fan, Water Heater, Lamp(30 Minutes)

AUTOMATICALLY - Time switch makes the electrical appliances working the setting time then automatically stop PROGRAMMABLE - A programmable countdown time switch. Energy-saving, Timing range can be controlled by the knob of the switch, and no need some one to look after them. KNOB OF THE SWITCH - Easy to operate, by the knob of the switch, you can settle the timing range Made of plastic shell and highly conductive copper, environmental-friendly, excellent performance, safe and durable to use WIDE USE -Can be installed instead of the wall switch, for controlling , fan, water heater, router, fish tank, lamp, other household electric appliances etc