Lanbao PR18S-TM20 DC M18 Through-Beam Sensor Lanbao PR18S-TM20 Series is a compact M18 cylindrical through-beam photoelectric sensor set for DC industrial automation systems. It uses separate emitter and receiver units to detect opaque objects that interrupt the beam path, giving stable longer-range detection without requiring a reflector. This PR18S-TM20 version is specified for 20m non-adjustable sensing distance, 10-30V DC supply, NPN or PNP receiver output, and selectable normally-open, normally-closed, or NO+NC logic depending on part number. Available connection options include fixed 2m PVC cable models and E2 M12 4-pin connector models, with infrared 880nm LED light source, IP67 protection, and a PBT housing reference in the official specification table. For related Lanbao photoelectric sensors, compare the Lanbao PR18S-TM10 DC Through-Beam Series, Lanbao PR18-TM20 DC Through-Beam Series, and Lanbao PR30-TM20 DC Through-Beam Series. For the matching M30 compact 20m version, see the Lanbao PR30S-TM20 DC Series. Technical Specifications Brand Lanbao Series PR18S-TM20 Series Sensor Type Compact M18 cylindrical through-beam photoelectric sensor Product Series Reference Cylindrical DC through-beam series Detection Type Through beam Rated Sensing Distance 20m non-adjustable reference Standard Target Opaque object greater than 15mm diameter reference Light Source Infrared LED, 880nm Dimensions M18 x 53.5mm and M18 x 68mm references, depending on variant structure Output Type NPN or PNP receiver output, depending on selected variant Output Logic Normally open, normally closed, or NO+NC, depending on selected receiver part number Power Supply 10-30V DC Target Type Opaque object interrupting emitter-to-receiver beam path Repeat Accuracy
