... function 2.Good anti-vibration 3.Light curtain has good immunity 4.Durable life 1.Basic ... (xx=04, 06, 08, 10......36)SNQxx80 (xx=02, 04, 06, 08......20)Light axis pitch 20mm, ... reflecting the beams,changing the transmission.(2)Light curtain form:Plane mirror reflect(3)Standard configuration:2 ... W type, outside installation,control 1 set light curtain,the power source is AC220V/110V(switch conversion) ...