The SICK MICS3-AAAZ55AZ1 is an ultra-compact photoelectric sensor with background suppression (BGS) technology, designed for precise object detection within an adjustable range of 2-55 mm. It uses a focused red light beam to measure the distance to the target, ensuring reliable detection regardless of object color, material, or surface reflectivity. The sensor features an NPN Normally Open (NO) output and is housed in a miniature IP67-rated plastic enclosure, making it ideal for space-constrained applications in robotics, automation, and packaging machinery.