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6. Using Your Alarm
Peak Level Display
Press and hold peak level buon 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 correcve acon can be taken (such as servicing your boiler).
To Reset Peak Level
NOTE: Press and hold peak level buon unl peak level appears on display screen. While holding
down peak level buon, press and hold down the test/reset buon unl peak level resets to
zero.
CO levels up to 30ppm can occur under normal non-dangerous condions. Such condions
could include nearby heavy traffic, starng a vehicle in an aached garage, starng a fire or
a nearby charcoal barbecue.