Changing the batteries
We recommend replacing the batteries in all of your alarms at least once a year, or any time the unit indicates the battery is low. The general rule is to replace the batteries when you change your clock for daylight savings time and / or when you switch your clock back. When the battery requires replacement, you must remove the old battery and replace it with the same battery type.
Locating the model number
Our alarms have a variety of different battery installation procedures, depending on the model number of your alarm.
To locate the model number on the alarm, perform the following steps:
Remove the alarm from the wall or ceiling.
Most alarms are attached to a mounting plate and can be removed by turning the alarm counterclockwise.
Locate the model number on the back panel of the alarm.
Once the model number and correct battery type have been identified, install the battery using the directions found in the user’s manual.