My monitor disappeared from the map

[bandibacsi]

My monitor was visible on the map for many months, but it disappeared now. What could be wrong?

Thanks, bb

[MallocArray]

There was a recent conversation about sensors showing significantly different values from other nearby sensors being hidden. That could be what is going on

Sensor disappears on AirGradient Map for all layers except CO₂

Actually, I noticed the issue again after I responded to you and checked in with the dev team on this. They’ve implemented outlier detection in a recent update which is the reason the AirGradient sensors are disappearing with PM selected. I’ve made them aware of the issue and they’re working on refining the outlier detection algorithm.

[moe313]

Hi bb,
If your monitor disappeared from the map, it could be due to connectivity issues, a device update, or account syncing problems. Try restarting the monitor and app, ensuring it’s online, and checking your account settings. If it still doesn’t appear, contacting support might be the best next step.

[bandibacsi]

Thank you! This might be the reason, my monitor’s readings are worse than the nearby ones. However, there are reasons for this:

1. the nearest moinitor is 4+ km far, in the next town, and there is a forest between the places; in our town, there is no other monitor
2. in our town, the high transit car traffic is a serious problem. I bought my monitor exactly for this reason, to be able to measure the pollution and make it publicly visible

This outlier filtering is definitely too strict, and kills my plans to trigger attention to our air quality problem. Instead of filtering, they should mark somehow on the map the outlier values by color or symbol, instead of removing.

Is this post possibly read by AirGradient people, or shall I deliver my message in some other thread or channel?

Thx, bb

[Smithandjosh]

I agree with you it’s too strict from what I’ve seen personally too. Hopefully it’s corrected

[bandibacsi]

Hi,
The monitor was online in airgradient app, but I restarted anyway, and now it reappaered on the map. If this was due to the restart, or the values are now more acceptable, or there was some other divine intervention, I do not know, but now seems to work - thanks!
bb

[MallocArray]

Employees do read the forums, so we’ll see what they say, but I would probably go to the main website and open a support case. Give your serial number and a link to this thread and they can look at the historic data to see if it being filtered by the Outlier detection or if something else wasn’t reporting right to the server side.