Our 450L GuardShield™ PAC Safety Light Curtains help protect personnel from hazardous machinery. These light curtains are designed for whole-body detection and are typically positioned around an area or in front of a machine process entry or exit area that poses a moderate to high risk of operator injury. Our GuardShield safety light curtains are unlike traditional safety light curtains, which are based on separate transmitter and receiver units. Patented technology allows each transceiver to be used as a transmitter or receiver via an innovative plug-in module. Like the other advanced products in the 450L GuardShield line, the PAC versions also feature integrated laser alignment, cascading, blanking, and integrated muting.