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8
USING THE OPTIONAL
LOCKING FEATURES
The optional locking features are designed to
prevent unauthorized removal of the battery or
alarm. It is not necessary to activate the locks in
single-family households where unauthorized
battery or alarm removal is not a concern.
These CO alarms have two separate locking
features: one locks the battery compartment,
and the other locks the CO alarm to the
mounting bracket. You can choose to use either
feature independently, or use them both.
Tools you will need: • Needle-nose pliers
• Standard/Flathead screwdriver.
Both locking features use locking pins, molded
into the mounting bracket. Using needle nose
pliers or a utility knife, remove one or both pins,
depending on which locking features you use.
The Battery Compartment Lock
TO LOCK THE BATTERY COMPARTMENT:
IMPORTANT!
Do not lock the battery compartment until you
have activated the battery and tested the battery
back-up.
1. Activate the battery
back-up by removing
the “Pull to Activate
Battery Back-Up” tab.
Push and hold the test
button on the CO
alarm’s cover until the
alarm sounds: 4 beeps,
pause, 4 beeps, pause.
If the unit does not alarm during testing,
DO NOT lock the battery compartment!
Install a new battery and test again. If it
still does not alarm, replace the CO alarm
immediately.
2. Using needle-
nose pliers or a
utility knife,
detach one
locking pin
from the
mounting
bracket.
Mounting Bracket Lock
Battery Drawer Lock
Locking Pin