Balluff BOS-18E-PS-1YA-E5-D-S4 Proximity Sensor

The Balluff BOS-18E-PS-1YA-E5-D-S4 is a diffuse-reflection photoelectric sensor in an M18 cylindrical housing (Ø18 x 70 mm) designed for dependable object presence detection on automated lines, with a rugged 1.4571 stainless steel body and a glass sensing face. It delivers a PNP normally open (NO) output and operates from 10 to 30 V DC, sensing targets within a 0–100 mm range using a red LED with a divergent beam to accommodate varied surface textures. The sensor is wired through a 4-pin M12 connector and features a glass sensing surface, enabling reliable detection across a range of targets and colors, while its stainless steel housing provides durability. As part of Balluff’s 18E family, this model is CE-certified for industrial use and is commonly deployed for presence or part-detection on conveyors, packaging equipment, or assembly lines where compact diameter and robust construction are beneficial.