... proctection,elevator parts,safety elevator light curtain,light curtain,elevator parts,safety edgeelevator light curtain,light curtain,elevator parts,safety edgeCSN515 Detailed Product Description ... transmitter is shielded after 120s’ blockingIndicatorPower (green LED)System fault/beams blocked(orange LED)Shell MaterialAluminum alloy surface of anodizing (black)ormatt ...