Riken Keiki CO-03, Руководство по эксплуатации

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16
NOTE

If no switch operations are performed, the monitor
automatically returns to the detection mode in about
20 seconds.

If no switch operations are performed, the backlight is
automatically turned off in about 30 seconds (except at
an alarm state).

When the gas monitor displays the full scale, hold AIR
+ MODE buttons down to perform the alarm test.