Specifications: WiFi valve can be used with wifi alone,NO gateway required. Mobile phone application remote control The smart valve compatible with Amazon Alexa/yandex alice/Google Assistant, allows you shut-off/on your water valve via your voice Compatible with water pipe ball valves, timing Auto/manual/App remote control switches, 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 Applicable to new and old gas water pipeline valves, no additional piping, users can install it themselves Specifications: Power supply voltage: 12V / 2A Communication technology:WiFi Valve pressure: 1.6Mpa suitable pipe specifications: 1/2 inches, 3/4 inches, 1 inchesDN15 DN20 DN25 . Automatic valve closing time: 5 ~ 10 seconds Automatic valve opening time: 5 ~ 10 seconds Torque: 30 ~ 60kg.cm Application: IOS / android application (downloadable: Smart Life / Tuya Smart APP) Valve Type: Handle Valve Switch Valve Package Included: 1 * host 1 * Instructions 1 * adapter 1*Set of tube clamps