The SICK LFP0500-G1NMB is a Type 4 safety light curtain from SICK's deTec4 Prime family, designed specifically for point-of-operation safeguarding on machinery. It creates an invisible vertical curtain of infrared light beams. When any of these beams is interrupted by an object or person, the device sends a stop signal to the machine's safety control system (e.g., a relay, safety PLC), thereby preventing hazardous motion and reducing the risk of injury.