Banner Engineering QS18WEQ2 Photoelectric Sensor

Banner Engineering's World-Beam QS18WEQ2 is a universal-voltage emitter for QS18 through-beam photoelectric sensing systems. It outputs an infrared beam across up to 20 meters when paired with a compatible QS18 receiver, making it well suited for long-range conveyor, packaging, and automation applications that require a reliable, simple emitter in a through-beam setup. Powered from AC or DC supplies over a wide 20–270 V range, the QS18WEQ2 features a 150 mm (6 in) micro pigtail Quick Disconnect wiring option for straightforward installation, and its rugged construction carries IP67 protection and a NEMA 4X enclosure rating for harsh industrial environments. The model designation QS18WEQ2 denotes the QD version with a 150 mm pigtail; as an emitter, its function is to provide the beam rather than generate a signal output, so the electrical output is not applicable. The sensing beam uses an infrared LED, aligning with Banner’s QS18 universal-voltage family designed to operate with either AC or DC power without requiring separate power supplies, which simplifies integration in facilities using mixed power rails. In practice, this emitter pairs with a QS18 receiver to form a reliable, long-range through-beam sensor pair, enabling accurate object detection, jam prevention, and presence sensing in factory automation lines.