The Allen-Bradley 442L-SFZNSZ is a receiver component for the GuardShield™ Micro 400 series of safety light curtains. This compact and efficient device is engineered for point-of-operation guarding, providing reliable finger protection in high-risk industrial environments. It works in conjunction with a transmitter to create an infrared light screen across a machine’s access point. If an object, such as an operator’s finger, breaks any of the light beams, the receiver’s solid-state outputs (OSSDs) send an immediate stop signal to the machine’s control system, ensuring personnel safety. Its streamlined design and simple setup make it an excellent safety solution for various manufacturing and automation applications where space is a constraint.