Question about Victron Energy Charge controller SmartSolar MPPT 100/20

There are several ways to monitor the solar controller remotely if no WLAN is available:

1. mobile modem: a GX LTE 4G modem can be used to establish a mobile internet connection. However, this requires a GX device such as the Venus GX.

2. Android device with TeamViewer: An old Android device can be equipped with TeamViewer Host to allow access to the solar controller via Bluetooth. This device must remain in the vicinity of the solar controller and be accessible via mobile phone or another network.

3. USB tethering: Although not very reliable, USB tethering can be used via a mobile phone to establish an internet connection.

However, these methods require either specialised hardware or additional devices.