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  • July 5, 2020 at 9:35 pm #28438
    Ken Jamrogowicz
    Participant

    I noticed that some folks have the formaldehyde sensor read zero when the level is … well … zero.
    (for example 82000108)
    Mine goes not lower than 7 ppb which is kind of an odd number.
    Is there some way to make it zero?
    I noticed on the spec sheet that there is supposed to be a factory zero calibration. So it should read zero, no?

    Ken

    July 14, 2020 at 9:14 pm #28450
    Ken Jamrogowicz
    Participant

    I have checked a couple of other units on line and they seem to have 0-10-20 ppb. Nobody has 7 except me. Is my unit defective?

    Ken

    August 24, 2020 at 8:35 pm #28504
    uRADMonitor
    Keymaster

    7ppb is the default reading on all newer units as we switched to a different formaldehyde sensor . Please check newer ID’s, closer to yours and you will see similar readings.

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