First Alert SMI100 Battery-Operated Smoke Alarm Thompson & Formby Smart swipe knuckle for mobile

Smart swipe knuckle for mobile devices

Durable vinyl door bottom has soft vinyl fins to seal against top of threshold and sill

medium density replacement pad with improved woven retention material is for random orbit palm sanders with dust collection

All seasons formula blocks drafts

Patented DoubleLock teeth design

First Alert SMI100 Battery-Operated Smoke Alarm Thompson & Formby Smart swipe knuckle for mobileThe 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