... hospitals, computer room,meeting rooms and other public places. pir sensor switch Features: 1.auto-sensing, entering the region, the ... or 220VAC.2.sensing distance: the largest mounted side wall 7 meters (adjustable).3.Load type: fluorescent, LED energy ... enternormal operation. When daylights, the switch automatically closed. pir sensor switch Use Note: 1.Wiring installation shall not be charged ...