Automatic Toilet & Urinal Flusher 1.Zinc alloy panel, with a ... CE,Water save certificate stainless steel panel brass solenoid valveBathroom Automatic Toilet & urinalFlusher 1)Zinc alloy panel,brass valve,infrared sensor2 ... :When you into the sensing zone , it will automatic flush at first time of 2 s to 4 s ... . When you leave the sensing zone, it will automatic flush at second time of 8s to 13 s. ...