Abus COWM300 - Display of Maximum Value

Displays and functions
32
Display of maximum value
If carbon monoxide is detected in your presence (values of more than 30°
ppm), but the CO alarm has reset into the Normal mode because CO levels
are no longer present, the device stores the peak CO value detected.
Pressing the Test/Reset button displays the stored value for 5 seconds. When
the Test/Reset button is released, the CO alarm returns to the Normal state.
Press the Test/Reset button for 5 seconds to delete the stored value. When
the batteries are changed, the value is automatically deleted and
automatically overwritten when an alarm is triggered.