SICK WLG12-P537 Photoelectric Sensor Light Barrier

The SICK WLG12-P537 is a compact light-grid style photoelectric sensor from SICK's WLG12 family, designed as a multi-beam light barrier for precise detection in narrow sensing gaps on automated lines. It operates on 18–30 V DC and provides a 1.5 m sensing range with 12.5 mm beam spacing, enabling fine-grained discrimination across the sensing plane. The device offers two PNP outputs and uses a 5-pin M12 connector for straightforward integration into standard control circuits. With a fast 0.6 ms response time, it supports high-speed detection in demanding manufacturing environments. The housing measures approximately 46.6 mm × 62 mm × 106 mm, making it suitable for tight mounting spaces while delivering reliable performance across its beam array. The WLG12-P537 is designed for industrial settings that require dense beam coverage and simple electrical wiring to PLCs and other controllers.