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WARNING
THIS DEVICE IS DESIGNED TO PROTECT INDIVIDUALS FROM ACUTE EFFECTS OF CARBON
MONOXIDE EXPOSURE. IT MAY NOT FULLY SAFEGUARD INDIVIDUALS WITH SPECIFIC MEDICAL
CONDITIONS. IF IN DOUBT, CONSULT A MEDICAL PRACTITIONER.
Low-Battery Warning
If the battery is low, the unit will chirp once, and the yellow LED indicator will flash every 60 seconds to indicate that
the battery needs replacement.
If you press the test button when there is a low battery, the low battery signal will temporarily stop for 10 hours.
End-of-Life Indication and Hush Control
Once the maximum lifetime of the alarm (10 years) is reached, the alarm will beep 3 times and the yellow LED indicator
will flash 3 times every 60 seconds. This end-of-life signal can be temporarily silenced for 22 hours by pressing the test
button.
This end-of-life silence feature can only be used for a total of 30 days. After 30 days, the end-of-life signal cannot be
silenced. During this end-of-life silence period, your alarm will continue to monitor for CO and provide protection as
usual.
To help identify the date to replace the alarm, write down the date of first operation on the dedicated label, located on the
side of the alarm.
Battery Installation
1. Twist counterclockwise and remove the mounting bracket from the base of the alarm.
2. Install 3 × 1.5 V AA batteries. When batteries are installed, the unit will beep once and the yellow, green, and red
LEDs will flash in sequence. "---," and "0" will be displayed on the screen with a blue backlight. In 1-2 minutes, the
backlight will turn off and the green indicator will flash once every 60 seconds indicating that the device is
functioning properly.
3. Reattach the mounting bracket to the alarm by twisting it clockwise.
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