Ionization sensor detects invisible fire particles
Horn rated at 85 dB at 10 ft. sounds to alert occupants in the event of a fire hazard
Test button for verifying that detection electronics are working as intended
Acquire these Kidde Code One Battery-Operated Ionization Smoke Alarms (6-Pack) whether you are a homeowner or contractor. Installation of these wireless alarms is simple and will help protect occupants of a multi-room dwelling or even 4 small apartments. The alarms are each powered by a 9 Volt battery so that operation is not interrupted by power outages. A test button indicates whether internal electronics are working and an intermittent chirp signals a low battery.