Display
Alarm 1 and 2 indicators
Alarm is armed and will sound at set time 
PM indicator
AM indicator
Sleep indicator 
Wake to LED effect indicator
Low Backup Battery indicator
Time Display
Alarm indicator
Mode indicator &
Bedtime Sleep Timer indicator
Installing/Replacing the Clock Backup Battery
Note: The CR2450 lithium battery is included in the unit. Please pull out the battery pull tab before you use the unit. This model is equipped with a battery backup circuit that will maintain the time and alarm time settings in the event of a temporary power interruption. The battery backup circuit will also operate the buzzer alarm to wake you up at the selected wake up time even if the power is out. The battery backup circuit requires one CR2450 lithium battery, included.
When the backup battery is getting weak the Low Backup Battery Indicator will begin flashing in the display. When you see this flashing indicator you should replace the backup battery as soon as possible. Purchase a replacement CR2450 battery, available wherever batteries are sold, and follow steps 1 through 4 below to install the replacement battery.
To replace the backup battery:
IMPORTANT: When replacing the backup battery be sure to have the unit connected to the AC outlet to maintain all of your settings, otherwise it will be necessary to reset the time and alarm time after the battery is replaced.
1. Place unit face down. Locate the battery backup compartment found on the back of the unit.
2. Use a Phillips screwdriver to open the battery compartment cover. Remove the cover and remove the exhausted CR2450 battery.
3. Insert a fresh CR2450 battery in the backup battery compartment with the “+” side facing up, as illustrated.
4. Replace the battery compartment cover and screw the compartment door back in place. Do not overtighten. Confirm that the backup battery indicator is not flashing in the display.
Installing Backup Battery
Note: Make sure you dispose of battery properly (see your local regulations).
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