First Alert SMI100 Battery-Operated Smoke Alarm Size:1.9 in H x 5.4 in L x 5.4 in W Gorilla Waterproof Patch & Seal

Gorilla Waterproof Patch & Seal Tape instantly seals out water

It installs easily and is compatible with virtually any 2-1/2" x 2-1/2" hitch

Durable die-cast aluminum housing with UV resistant polycarbonate lens

reducing spills and overflows

First Alert SMI100 Battery-Operated Smoke Alarm Size:1.9 in H x 5.4 in L x 5.4 in W Gorilla Waterproof Patch & SealThe First Alert SMI100 Battery Operated Smoke Alarm is available in a convenient two pack. The SMI100 smoke detector is equipped with First Alert's Precision Detection advanced sensing technology and meets new industry standards. This battery operated alarm is easy to install and the front access battery compartment makes for easy battery replacements. First Alert's Precision Detection advanced sensing technology complies with new industry standards