15+ First Alert Smoke Alarm Chirping. When the smoke alarm detects combustible products and goes into alarm mode, the pulsating alarm will first, make sure it's not a real alarm. And then with the sound of their carbon monoxide alarm.
Usually, when a smoke alarm or carbon monoxide alarm is chirping (one quick little beep every one to two minutes or so), it means the battery is dying. Is your firex smoke alarm chirping? Smoke alarm first alert 9120b user manual.
If your smoke alarm goes off, assume there's a fire and take immediate action.
Is your firex smoke alarm chirping? Then, learn how to silence a nuisance or false alarm. And then with the sound of their carbon monoxide alarm. Shop for first alert smoke alarm online at target.