Peak Level Reading Feature
The peak level reading is the highest level of CO recorded by the unit over the last four weeks.
To display the peak level reading firstly place your left thumb or finger over the sounder vent (see
diagram), then press and hold the Test/Reset button down with your right thumb or finger.The horn will
sound and the detector will display the peak level reading stored in the memory until you release the
button or for a maximum of 4 seconds.
This feature is helpful to a technician servicing your home or possibly to yourself when returning home
after a period of time and discovering the high or low level icon displayed on the digital display indicating
that the alarm has sounded in your absence.
Holding the Test/Reset button down
for 5 seconds will reset the peak
level reading to ‘0’.
Replacing the battery will also cause
the peak level reading to reset to ‘0’.
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