I finally got the weather station working again!

A new electronics board has been installed with a 4G/5G modem. It turns out that the modem is not compatible with the Optus network, so the existing SIM card would not work. Now on the Telstra network and all seems good.
NOTE: The weather station is currently at my house waiting to co-ordinate with the maritime contractor for re-installation on the lake.
The current readings DO NOT represent the conditions on the lake!!Also note that this new board from Holfuy does not support a camera input.

We are looking at alternate time lapse remote cameras to regain this functionality.