A double beep combined with the FAULT LED
blinking signal that the battery is weak. In
addition, " " is shown in the display without
interruption.
The acoustic warning signal can be switched off for 8 hours by
pressing the Test/Reset button. The yellow FAULT LED continues
to blink and " " is shown in the display.
Replace the battery within 7 days to guarantee proper alarm
function. The battery types that can be used for the alarm are
listed on the label on the back of the alarm.
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