ReeR Safegate Type 4 access control barrier safety light curtains provide protection in a range of industrial applications requiring integrated muting functions. The muting function disables the safety function temporarily when a workpiece or conveying palette passes through the detection area of safety light curtains or safety sensors. The safety curtains feature integrated muting functions with two access control (body protection) hardware or software configuration options. Sender/receiver or active/passive pair versions are available with 24-Vdc input, 300- or 400-mm resolution and 0- to 8-m or 0- to 12-m operating distances. Software configurable (SMPO) models permit the upload/download of settings, specification of muting parameters and light curtain status.