Features: 1.14 groups of capacitor core processing chip, more accurate and sensitive to switch. 2.Precision manufacturing, provides strong anti?interference ability. 3.Powered by 1 AAA removable battery (not included), easy to replace. 4.The shell is made of flame retardant material, which is safe and reliable. 5.Used for timing charging of mobile phone, battery, battery car, effectively prevent overcharging. 6.Used in electric water heater, electric heater, electric rice cooker, humidifier, air purifier and other household appliances to realize automatic switch. Specification: Condition: Brand New_x000D_ Item Type: Timer Switch_x000D_ Material: ABS_x000D_ Color: As picture shown_x000D_ Type No.: KG316T_x000D_ Battery: 1 x AAA removable battery (Not Included)_x000D_ Function: Fully Automatic Turn On/off All Power Equipment_x000D_ Standard Operating Voltage: 220V/50Hz _x000D_ Applicable Power Supply Range: Voltage AC 170-240V _x000D_ Optional Switch Capacity: 10A/20A_x000D_ Installation: Screw Fixation_x000D_ Operating Temperature: -10-50 _x000D_ Relative Humidity: < 95%_x000D_ Consumption Power: 4VA _x000D_ Weight: Approx. 450g/15.9oz_x000D_ Timing Range: 1 Minute - 168 Hours, free setting from monday to sunday_x000D_ Timing Error: < 0.5S/Day_x000D_ Programming Times: 10 Sets of Switches/Per Day PackageList: 1 x Timer Switch1 x Instruction Note: This product is not suitable for separate connection of water pump/motor, it is recommended to use AC contactor, otherwise it is easy to burn out this product.