Lanbao PSS-PM3 M18 Polarized Photoelectric Sensor Lanbao PSS-PM Series is an M18 cylindrical polarized retro-reflective photoelectric sensor series for DC automation systems that need reflector-based object detection in a compact threaded housing. Polarized reflection helps distinguish the reflector return from ordinary surface reflections, improving reliability compared with basic retro-reflective sensing. This listing covers PSS-PM3DNBR and PSS-PM3DPBR cable variants with 3m rated sensing distance, red 640nm light source, NPN or PNP output, NO/NC switching logic, 10-30V DC supply, single-turn distance adjustment, IP67 protection, and a 2m PVC cable connection reference. For related Lanbao photoelectric sensors, compare the Lanbao PSS-PM-E2 Connector Series, Lanbao PSS-TM Through-Beam Series, Lanbao PSS-GM Transparent Object Series, and Lanbao PSE-PM3 Polarized Series. Technical Specifications Brand Lanbao Series PSS-PM Series Store SKUs Lanbao-PSS-PM3DNBR and Lanbao-PSS-PM3DPBR Sensor Type M18 cylindrical polarized photoelectric sensor Sensing Mode Polarized retro-reflective detection with reflector Rated Sensing Distance 3m reference Standard Reflector Reference TD-09 reflector reference Light Source Red light, 640nm reference Light Spot Size 45 x 45mm reference at 100cm Output Options PSS-PM3DNBR for NPN output; PSS-PM3DPBR for PNP output Output Logic NO/NC reference Supply Voltage 10-30V DC Consumption Current