Functions and features 1.Water will flow out automatically and immediately when hands,containers or washings are in the sensing zone. 2.Automatic on/off control completely done by the sensor without the faucet being touched to prevent cross-infection. 3.Modern digital technology employed,with ultra low energy consumption(4 AAAlkaline batteries of DC type products and be used for about 2 years by 6000 times per month). 4.Delicately made from brass;inchrome;Long-lasting gross;attractive curve design;strong modern sense. 5.Built-in filter deployed,for preventing the impurities from flowing to the electromagnetic valve and affecting its normal work. 6.Specification (1).Model No: BD-8904 (2).Power: AC220V 50/60H. DC6V(4pcs 5 alkaline batteries) (3).Sensing range: 20cm (4).Dia of water pipe:G1/2 (5).Water pressure:0.7kg/cm-7kg/cm (6).With water stop protection: The system will automatically turn of the water continuein 30s. (7).Flux:approach to 0.3L/min