Victron VE.Direct Bluetooth Smart dongle (ASS030536011)
Using the VE.Direct to Bluetooth Smart dongle you can display your BMV or MPPT information on iOS and Android devices, using the VictronConnect App. View information wirelessly such as battery status and solar panel power, plus other useful data.
The dongle is able to read data from all products with a VE.Direct port, such as the BMV-70x series battery monitors, Phoenix Inverters with VE.Direct port, MPPT Solar Charge Controllers.
Quick delivery, connected to the app, and it worked. Appears to be fairly accurate and easy to install.