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Mount the alarm at least 4 inches (10 cm)
from a side wall and 2 feet (.61 meters) from
any corner.
In a mobile home, a thermal barrier might
form at the ceiling during a fire. Therefore, if
you are installing the alarm in a mobile
home, mount the alarm on an inside partition
on the wall.
Typical Installation
Here are typical installations for both single-
and multiple-floor locations.
INSTALLING/REPLACING
THE BATTERY
Your alarm comes with one 9-volt battery for
power. To install the battery, snap the bat-
tery onto the terminals.
Caution:
The battery fits onto the terminals
only one way. Do not force it.
When the alarm repeatedly sounds a short
beep every 30–40 seconds or the alarm does
not sound when there is smoke in the area,
replace the battery with a RadioShack alka-
line battery (Cat. No. 23-553, not supplied).
Caution:
Dispose of old batteries promptly
and properly. Do not burn or bury them.
MOUNTING THE ALARM
The alarm’s mounting bracket lets you mount
and position the alarm as necessary.
Note:
The alarm has a safety feature that will
not let you mount it onto the bracket until you
have installed a battery in the alarm.
Follow these steps to mount the alarm.
1. Select a mounting location using the in-
formation in “Recommended Alarm Lo-
cations,” then use the back of the alarm
as a template to mark the mounting
screw locations on the wall or ceiling.
2. Drill a hole at each marked location.
3. Use a hammer to tap a wall anchor into
each hole, if necessary.
4. Hold the mounting bracket over the wall
anchors, thread one of the supplied
mounting screws into each hole, then
tighten the screws.
5. Align the alarm onto the mounting brack-
et, then push down and turn the alarm
clockwise onto the bracket to secure it.
Acceptable here
Best here
Do not mount here
Ceiling
4-12”
4” (minimum)
Single-Floor
Living Room
Kitchen
Bedroom
Hallway
Family
Room
Basement
Install alarm here for minimum protection
Install alarm here for additional protection
Installation
Multi-Floor
Installation