FAST RESPONSE,HIGH RELIABILITY,INTERFERENCE-IMMUNITY,SLIM PROFILE,PERFECT COMPACITY Light Curtain Sensor: NPN / PNP Dual OutputSlim profile for tight mounting space Aluminum alloy housing: IP65 NPN/PNP dual output Anti-interference, Fast Response SPECIFICATION: ModelSN SeriesDetectionThrough beamDetecting distance0-2M/8MDetecting height100-1560mmOptical axis pitch 20/30mm for hands, 40mm for arms ...