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6. Using Your Alarm
Peak Level Display
Press and hold peak level bu5on to display the most recent CO reading between 11 - 999ppm.
This feature is useful to help you to know what levels of CO may have been detected in your
absence so correc4ve ac4on can be taken (such as servicing your boiler).
NOTE: The peak level memory is cleared to zero if the test and peak level bu5ons are pressed
at the same 4me, or by removal of the ba5eries.
CO levels up to 30ppm can occur under normal non-dangerous condi4ons. Such condi4ons
could include nearby heavy traffic, star4ng a vehicle in an a5ached garage, star4ng a fire or a
nearby charcoal barbecue.
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