STI-1210D Horn/Strobe Damage Stopper and Open Backbox with Conduit Knockout

This virtually indestructible cover (slotted for horn/strobe unit alarms) is designed to stop vandalism and accidental damage for surface mounted units. Molded of clear, thick, UV-stabilized polycarbonate material, backed by a lifetime guarantee against breakage in normal use. Slots in the STI 1210D allow the horn to be heard. Unit comes with a spacer with knockouts for mounting over exposed conduit.