The SICK MICS3-AAAZ40AZ1 is an ultra-compact photoelectric sensor with background suppression (BGS) technology, designed for precise object detection at a fixed 40 mm range. It uses a focused red light beam to accurately detect objects while ignoring any background interference beyond the set distance. The sensor features an NPN Normally Open (NO) output and is housed in a miniature IP67-rated plastic enclosure, making it suitable for space-constrained applications in robotics, automation, and packaging machinery.