FIRST ALERT(R) 1039796 Ionization Smoke Alarm

• Model number SA303CN;• Alarm excels at detecting smoke from flaming fires;• Ionization smoke-sensing technology with enhanced smoke-gathering design ;• Loud 85dB alarm is designed to be heard easily ;• Features single test/silence button for simple operation ;• Side-load battery compartment & theft-prevention lock;• Includes mounting bracket & 9V battery;Length: 8.50"Width: 6.75"Height: 3.00"