Monitor connected to a different dashboard

Goog morning.

I am try to connect my AirGradient outdoor monitor to the dashboard. But I have this error message: “Monitor is already connected to a different dashboard. Please contact AirGradient support”.

Can someone help me please?

Please contact our support team through our website with the serial number of the monitor.

Hi Achim.

Done! It is ok now, the monitor is working well.

Please I have another question if possible to ask here:
It seems that the monitor cannot work without internet connexion right? is there a way to use it offline?

Thanks again.

This should help
https://www.airgradient.com/support/kb-connect-offline/

Thanks.
please, is this tutorial for outdoor monitor?

Ok. I missed that you have an outdoor monitor. But the outdoor monitor has no display. How do you know the values if it is offline? Or do you want to read the values through the usb cable?