With a highly sensitive sensor. Intelligent sensing technology, 55-60 for cm induction distance. Near infrared application technology with a wavelength of 700mm-2000mm as the main sensing distance. Double flush, 3 seconds in front of the station, when you leave the toilet, for 8 seconds, hygiene and odor control. Intelligent flushing control according to the using frequency effectively reduces the waste of water source. Made of high quality ABS for shell and stainless steel wave tube, resistant to corrosion, durable, farewell to rust. Exposed wall mounted, suitable for all kinds modification works, public toilet, hotel, hospital, airport, bathroom, etc. Low energy consumption, powered by 4pcs AA alkaline batteries, with low battery indicator. Specification: Voltage: for DC 6V Power Supply: 4 x AA batteries(NOT included) Water Pressure: 0.05-0.8MPA Idle Discharge: 5UA(for DC), 2W(AC) Diameter of Inlet Water Pipe: G1/2"(DN15) Battery Lifespan: 1.5-2 years Induction Distance: 55-60cm Environmental Temperature: 0.1-45 Material: Plastic shell+Brass Dimensions: 8.5x13.5x6.5cm(3.35x5.31x2.56in)(approx) Color: Silver Quantity: 1 Pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Urinal Sensor(other accessories demo in the picture is not included.)