Ha, you're just ahead of me and repaired the link.
Nice though: about the same cost as an AirLink (every two years, which I thought has two sensors, at least the PurpleAir has) and with some kind of triple differential measurement. Nice spot.
But those chinese simply take the sensor readings for their map from the sensor.community site as my sensor is on it and the only place I drop the data is sensor.community. So don't think they are all that big. Data stolen! So
Perhaps they have algorithm for RH > 70%
No I don't think they will, it is just raw data from the sensor.community.
The NAM (Nettigo) is I believe a much improved version of the sensor.community DIY kit - using the same sensor - and this one has tried to overcome the 70+% humidity situation.
The GAIA (? not sure) and the NAM automatically send data to sensor.community. It would be nice if there would be some generic method in CMX to read/log/display the data of this type of sensors but I think that is a step or two too far as there is no direct interfacing to these. You would have to make that yourself. The only way I know now is the webserver interface of the AirLink but maybe the new http://... interface might be a possibility for the future. I did not look at it that way.
With the http interface you might be able to get the data from sensor.community and store it locally as a device belonging to your weatherstation. A bit like taking the weather from a METAR which is done by some. It could be a CMX feature, it could be a template feature.
Anyway.... I get carried away a bit. GAIA and NAM: nice alternatives. NAM I like best.