Feature: 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 Item Type: Timer Switch Material: ABS Color: As picture shown Type No.: KG316TBattery: 1 x AAA removable battery (Not Included) Function: Fully Automatic Turn On/off All Power Equipment Standard Operating Voltage: 220V/50Hz Applicable Power Supply Range: Voltage AC 170-240V Optional Switch Capacity: 10A/20A Installation: Screw Fixation Operating Temperature: -10-50 ℃ Relative Humidity: < 95% Consumption Power: ＜4VA Weight: Approx. 450g/15.9oz Timing Range: 1 Minute - 168 Hours, free setting from monday to sunday Timing Error: < ±0.5S/Day Programming Times: 10 Sets of Switches/Per Day. Package List: 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.