Banner Engineering SLPVAR14-550 Safety Light Curtains EZ-SCREEN Low Profile BASIC, Receiver; Resolution: 14 mm Response (Tr): 16.5 ms; Beams: 55; Range: 0.1-4 m (4 in - 13.1 ft); Height 550 mm (21.7 in); Removable Disconnect (RD) Cordsets & Mounting Hardware Ordered Separately