Woman tests her smoke alarm while on a ladder.
Related Articles
Woman tests her smoke alarm while on a ladder.

How to Tell If Your Smoke Alarm is Working

The smoke alarm should be operating once AC power is applied, fresh batteries are installed and testing is complete.

Woman tests her smoke alarm while on a ladder.

How to Test a Smoke Alarm

Test a smoke alarm by using the test button. This will will ensure an accurate and complete test of your alarm(s).

Related Products
Products related to this support article
Smoke Alarm, Hardwired with 10-Year Backup Battery
Smoke Alarm, Hardwired with 10-Year Backup Battery
20SA10 is offers cutting edge technology that sends fast alerts to give your family more time to get out safely ...
Smoke Alarm
Smoke Alarm, 10-Year Battery Powered
Smoke Alarm, 10-Year Battery Powered
20SD10 is offers cutting edge technology that sends fast alerts to give your family more time to get out safely ...
Smoke Alarm
Smoke Alarm, AA Battery Powered
Smoke Alarm, AA Battery Powered
20SDR is a compact 4” alarm, designed for small spaces. Cutting edge technology sends fast alerts that give your...
Smoke Alarm
Smoke Alarm, Hardwired with AA Backup Battery
Smoke Alarm, Hardwired with AA Backup Battery
20SAR is offers cutting edge technology that sends fast alerts to give your family more time to get out safely a...
Smoke Alarm
Smoke Alarm, 10-Year Battery Powered and Voice Alerts
Smoke Alarm, 10-Year Battery Powered and Voice Alerts
20SD10-V is offers cutting edge technology that sends fast alerts to give your family more time to get out safel...
Smoke Alarm