Feature:Simply & Convenience operation: Sensor powered by 4pcs AA batteries; when sensor is activated, automatically supplies water as soon as hands are within sensing range, and stops when you move away your hands.Water-saving: Water efficient faucet reduces overall water usage without sacrificing water pressure.Energy-saving: Battery shall last approximately 300 times/day for two year.Hygiene: Touchless design provides hands-free and germ-free operation.Durable: Made of copper alloy material, or reliability and long lasting performance.Speciation:Installation type: erectMaterial: Copper alloySeat diameter: 40Working temperature: 0-65Nominal pressure: 0.05-0.8Inlet and outlet pipe diameter: 1/2Applicable type: basin faucetStructure form: single jointOpening method: InductiveFaucet Size: 16.3 x 6.5 x13cm / 6.42 x 2.56 x 5.12 inch (appr.)Control box: 12.5 x10.8 x7.5cm / 4.92 x 4.25 x 2.95 inch (appr.)Package Included:1 x Automatic Sensor Faucet1 x Control box1 x Hose 1 x Screw package 1 x Three-way switch1 x English manual