The Valve power by TUYA if you are away from home,the mobile phone can be remotely controlled,open the watering valve to water the farmland,water the garden,and close the gas valve. Applicable Products Compatible with water pipe ball valves, electric, manual control switches, and natural/liquid/tap gas, suitable for controlling water valves, natural gas valves, filling pools, farm watering plants Set the time to automatically open or close the valve In order to prevent power outages caused by the inability to use,there is a manual clutch at the bottom of the unit with a pull ring, which allows to move the lever to close or open the valve., Manufacturer: HIJYMNZPQ