First Alert SMI100 Battery-Operated Smoke Alarm Size:1.9 in H x 5.4 in L x 5.4 in W 3/4" rise or 1-1/4" drop

3/4" rise or 1-1/4" drop for precise trailer leveling

750mA Battery Charger and Maintainer is all you need to stay charged

Gorilla Waterproof Patch & Seal Tape instantly seals out water

hollowback shovels

Wait 30 minutes after turning off before handling

First Alert SMI100 Battery-Operated Smoke Alarm Size:1.9 in H x 5.4 in L x 5.4 in W 3/4" rise or 1-1/4" dropThe 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