Wire Cage, Indoor, Outdoor, Color White, Material Steel, Mounting Ceiling, Width 8 1/4 in, Depth 3 1/2 in, Height 8 1/4 in, Diameter 8 1/4 in, For Use With System Sensor SPECTRAlert horn/strobe/speaker notification appliances, Standards UL/cUL Listed, Features Protects System Sensor SPECTRAlert (R) Advance Series Horn/Strobe/Speaker Notification Appliances, Includes Mounting Hardware. This item has been restricted from sale in the following state (s): []