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Typical CO alarms only go off when there is a level of gas that is an imminent danger. A lower level of gas could be present and go totally undetected, but present an ongoing health risk. There are special CO monitors that are capable of detecting and alerting down to 5ppm but they are rarely installed in homes.



Guy from gas company stuck it over stove, along with his device.

His was showing extreme numbers. Mine blinked happily.

He said this was common. Always get one that showed actual numbers.




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