Compatible with "SmartLife" App. You can use your smart phone to control the opening or closing of the water or gas valve conveniently. Compatible with Alexa and , easily control the smart valve control via simple voice commands.[[Valve Controller, 2 Types Optional] Wifi or ZigBee type. A ZigBee smart gateway is required for using the ZigBee smart valve controller, please prepare by yourself. Easy installation, safe use, no pipeline cutting required, fits for lever switch valve of 4 points, 6 points, 1 inch and 1.25 inches.[[Timing & Countdown Function] Timing function, you can turn on/ off the water or gas valve by schedule; countdown function, more energy-saving and money-saving.[[Share Function & Smart Linkage] Share with family members, friends, employees, etc. and control together to ensure higher security, it supports up to 20 accounts. Intelligent linkage scene: add more than one device in APP by turn, creating intelligent scene to control smart home more flexibly.[[Wide Application, Manual Control] Suitable for both water valve and gas valve, can be widely used in household water supply, household fuel gas, garden watering, lawn/ farm irrigation, fish tank, aquarium, etc. You can manually turn on/ off the valve through the ring pull when out of electricity or in emergency state.