First Alert SMI100 Battery-Operated Smoke Alarm Size:1.9 in H x 5.4 in L x 5.4 in W Fast Acting

Fast Acting

class 3 galvanized for high resistance to rust/corrosion

elasticity and ability to absorb shock

6% Potassium 0

First Alert SMI100 Battery-Operated Smoke Alarm Size:1.9 in H x 5.4 in L x 5.4 in W Fast ActingThe 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