Lithum 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 Add to compare Smoke Detector, 10-Year Smoke Alarm with Photoelectric Sensor and Built-in 3V Lithum Battery, Fire Alarm with Test Button and Low Battery Warning, Fire Safety for Home, 4 Pack Added to wishlistRemoved from wishlist 0 Add to compare $49.99 $44.99 10%