The Banner S18SP6RQ is a retroreflective photoelectric sensor designed for reliable object detection using a red visible LED and a reflector. With a sensing range of up to 4 meters, it features an M18 cylindrical housing, PNP (sourcing) output, and a Euro-style M12 quick-disconnect (QD) connector for fast installation and maintenance. This sensor is ideal for conveyor lines, packaging, and machine control systems requiring long-range and high-visibility detection. Key Features: Retroreflective sensing with red LED 4 m sensing range (with reflector) M18 plastic threaded housing PNP output (sourcing) M12 Euro-style quick-disconnect connector Bright LED status indicators IP67-rated for harsh environments Applications: Object detection in conveyor systems Bottle or box presence detection on packaging lines Machine entry or gate monitoring OEM automation systems with modular cabling