Why am I getting an unusually low (0) or unusually high (100+) reading?
Low readings (0-6 ppm) are typical of non-smokers. A reading of 0 is uncommon, but there are a couple reasons why your reading may be unusually low:
- Your breath CO actually is very low, close to zero, because you haven't smoked in a while.
- There's moisture accumulated in the sensor. Place the sensor in an open area and allow to dry.
If you see an exceptionally high reading (over 100 ppm) when you do a breath sample, there are a couple of possible reasons.
- It could be that you took a sample immediately after smoking. Try waiting at least 5 minutes after smoking before taking a sample.
- Another possibility is that the device is malfunctioning. If you see multiple readings of over 100 ppm please contact firstname.lastname@example.org for further help.