Change Smoke Alarm Battery. First Alert 9120B YouTube

How To Open First Alert Smoke Alarm Battery Compartment. First Alert SA303CN3 Basic Battery Operated Smoke Alarm Push the locking pin through the black dot on the label on the back of the Smoke Alarm First, you should closely inspect the Smoke Alarm to determine whether it needs to be opened

If the unit does not alarm during testing, DO NOT lock the battery compartment! Install a new battery and test again Once you have these items, you're ready to open your First Alert smoke alarm

First Alert smoke alarm beeping Spacehop

If the unit does not alarm during testing, DO NOT lock the battery compartment! Install a new battery and test again When installing the battery in your alarm make sure they match the same polarity in the battery drawer. It is surprising how often people forget or forego changing the batteries on their smoke alarms

How to Install First Alert Smoke Detector YouTube. Statistically, a home fire starts every 83 seconds in the USA. If the Smoke Alarm still does not alarm, replace it immediately

How to Install Hard Wired Smoke Detector Easy Installation First. 7 Latch to Open Battery Compartment 8 Swing-Out Battery Compartment 9 Quick-Connect Power Connector HOW TO INSTALL THIS SMOKE ALARM THE PARTS OF THIS SMOKE ALARM This Smoke Alarm is designed to be mounted on any standard wiring junction box to a 4-inch (10 cm) size, on either the ceiling or wall Using needle-nose pliers or a utility knife, detach one locking pin from the mounting bracket