A chirping smoke alarm often indicates a low battery. When it happens at night, it could be an environmental issue affecting ...

Beep. Beep. Beeeeeeep. Is there anything more piercing than the incessant, shrill tone of a smoke or fire alarm? And raise your hand if you’ve ever had them go off ...

Small flashing red lights and chirping sounds every 30 to 60 seconds can mean it’s time to change a smoke alarm’s battery. Some models may have a green flashing light or announce “low battery,” so ...