Balluff BOS-SR21-AV Photoelectric Sensor is a non-contact sensing device designed for industrial automation, operating on a 10 to 30 V DC supply to detect the presence or absence of objects. As a photoelectric sensor, it uses light to sense targets, delivering fast response without mechanical contact and reducing wear on equipment. The BOS-SR21-AV is part of Balluff's BOS-series family of photoelectric sensors and is specified for 10–30 V DC operation. This model enables reliable, contactless detection in automation setups where consistent presence sensing is required.
