Please rest assured to buy, we will send you the corresponding version according to the usage standards of the country you purchased. Features: Remote operation: Remote control by mobile phone APP anytime and anywhere; manual button for on-site operation and timing control Signal distance: Mainly depended on the distance of WiFi router , the open connection distance of smart water valve is 100 meters. Battery: Built-in long-life lithium-ion battery Protection level: IP65, the smart water valve can be installed and used outdoors Specification Product Name:Smart Water Vave Wireless Protocol:Wireless 2.4G(no need hub to operate) Waterproof Level:IP65 Water Pressure:0.2-0.8 bar Solar Panel Rotation Angle:0-30 Flow meter Measuring range:2L~25L/min Wifi Solar Watering Water Timer:No need battery,powerd by solar energy.smart water timer based on soil date.Can connect with soil sensor directly.and linkage with soil sensor. Remote Control:Can turn on/off via Tuyasmart or Smart Life app.Don't need hub to operate. Users can customize the watering frequency and exact time based on a plant's need and their own schedule.It has delay watering features. can delay in rainy and snowy days. ",