The HL18L-N1G5AB is a miniaturized retro-reflective photoelectric sensor with a dual-lens system and built-in polarization filter. It utilizes visible red laser light to detect objects up to 10 m away with a reflector and down to 0.1 m minimum range. The slim plastic housing offers IP67/IP69K protection and includes a fastening nut for easy mounting, making it suitable for compact and robust industrial applications.