Home Forum Community Formaldehyde – local data always zero

This topic contains 3 replies, has 2 voices, and was last updated by  Radu Motisan 1 month, 2 weeks ago.

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  • #6484

    edodd55
    Participant

    Well it was – but now the grape harvest (vintage) is in full swing and now I have excess formaldehyde, and tonight the worst VOC AQI on the network at 440.
    I get to see bursts of CO2 when wine tanks are opened too.
    Lots of interesting things – and I just thought my neighbours made noise and smell!
    https://uradmonitor.com/tools/dashboard-04/?open=820000F4

    #6487

    Radu Motisan
    Keymaster

    You will often see the VOC AQI perfectly aligned with Formaldehyde readings. I love it, since the two sensors are using very different tech for their operation.

    #6494

    edodd55
    Participant

    Tonight the sensor is reading at the maximum again, 5000 ppb (or 5 parts per million). Maybe a different sensor which has a higher maximum could be found for a newer model?

    #6500

    Radu Motisan
    Keymaster

    Sadly, this is most likely a formaldehyde sensor failure. Your unit variant uses analogue connection to sensors, so there is little we can investigate here. Newer A3’s communicate with the formaldehyde sensor via a serial connection.

    Drop me an email on support@uradmonitor.com if you want me to service it.

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