The GL-R Series safety light curtain is built from a 3-mm thick extruded aluminum body with a narrow, 9-mm wide recessed lens surface. This design completely guards the light curtain from impact damage often experienced when using conventional models, reducing replacement costs and downtime. The housing is sealed to meet IP65 and IP67 ratings for use in harsh environments. The series features new wiring systems and brackets that save time and trouble by simplifying installation. The new one-line wiring system allows the transmitter to be connected in series directly to the receiver for power and synchronization purposes. The series also includes "smart" features including edge-to-edge detection, series connection, built-in muting and blanking, highly visible indicators, quick disconnect cable options, and monitoring software.