Smoke Detector Battery Installation – Visonic MCT-427
What You’ll Need
•
MCT-427 SMA Smoke Detector
•
One CR123A battery
How to Install the Battery
Before proceeding,
please be sure that your system is disarmed and in
. Working on devices while the
system is armed can generate false alarms.
Did You Know?
Removing batteries without putting the system in Test mode could trigger an alarm, dispatch police/fire
assistance, and may result in a fine for a false alarm.
Is This Your Smoke Detector?
Make sure
that your Smoke Detector looks like the one
in the image. If it does, you have the right
document to find out how to install a battery
in your Smoke Detector.
1. Put your system in
2. If you have removed the Smoke Detector
from the wall/ceiling, turn the Smoke
Detector body counterclockwise until the
cover tabs are free from the slots holding
the Detector in place.
If the device is still attached to the
wall/ceiling, hold the top of the Smoke
Detector and turn it counterclockwise until
it stops. The cover will remain attached
once you've pulled the Detector away.
3. Locate the battery compartment cover on
the top of the Smoke Detector and use
your finger to lift the cover.
Take a Look.
If a battery is already present,
remove it by using your fingertip to gently pull
one end of the battery up until the battery is
loose. Then, you can pull it free from the slot.
