Balluff BOS 18M-PA-ID20-S4 Photoelectric Sensor

Balluff BOS 18M-PA-ID20-S4 is a cylindrical M18 diffuse-reflective photoelectric sensor that operates from 10 to 30 V DC and provides a PNP normally open (NO) output on pin 4. Encased in brass, nickel-plated housing with a glass sensing surface, it measures Ø18 x 75 mm and offers a sensing range of 1 to 800 mm for infrared diffuse targets, with a divergent beam and an adjustable sensitivity set via a 270-degree potentiometer. The connection is via a 4-pin M12x1 connector, and the device includes double-insulated protection (Class II) with a DC 13 utilization category; a yellow LED indicates when the sensor is active. It carries CE, UKCA, and cULus certifications and WEEE compliance, and the BOS01EY order code identifies this specific diffuse-reflective 18M-PA-ID20-S4 model.