Audible and Strobe Guard, Open w/Conduit Knockout Back, Indoor, Color Clear, Material Polycarbonate, Mounting Surface, Width 6-1/2 In., Depth 5-3/4 In., Height 8-1/2 In., For Use With Fire Strobes, Operating Temp. -40 to 250 Degrees F, Standards UL, cUL, Includes Mounting Hardware. This item has been restricted from sale in the following state(s): []