Create a perimeter around machinery by deflecting light beams from a single set of safety barrier switches. An alternative to buying multiple sets of switches, using these mirrors involves less wiring and setup time. Each mirror adds one side to your light beam barrier. For example, use two mirrors to create a three-sided barrier or three mirrors to create a four-sided barrier. However, each mirror slightly reduces maximum sensing distance for switches—use no more than three with a single set. The included brackets are adjustable, so you can angle the mirror exactly where you need it.