Amazon has First Alert SA320CN Dual Ionization & Photoelectric smoke Sensor Battery-Powered Smoke and Fire Alarm for $12.47 + Free Shipping w/ Prime
*Frustration-free packaging only, battery included the last two times I purchased it.
Amazon has First Alert SA320CN Dual Ionization & Photoelectric smoke Sensor Battery-Powered Smoke and Fire Alarm for $12.47 + Free Shipping w/ Prime
*Frustration-free packaging only, battery included the last two times I purchased it.