HomeProduct Product Dimensions5.6 x 5.6 x 2.2 inches 5.6 x 5.6 x 2.2 inches Filter Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sort by editor review Added to wishlistRemoved from wishlist 0 First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 1-Pack Added to wishlistRemoved from wishlist 0 $14.18