Nauticam 17909, Инструкция по эксплуатации

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2. Switch the alarm on. The LED light
will flash blue once and turn blue
for five seconds indicating the
battery is normal. Then it goes into
flashing blue light standby mode. 3. Test the alarm by connecting the
two wires near the bottom of the
housing with a damp cotton bud;
the alarm should start giving out a
repeating “beep” sound along with
a flashing red light. The “beep”
sound and the light should keep on
going for 5 seconds after the
removal of the damp cotton bud.