Victron VE. Bus Smart DongleVictron VE. Bus Smart Dongle is a compact, two in one solution that brings Bluetooth monitoring and voltage temperature sensing to your VE. Bus inverter charger system. This clever dongle lets you monitor performance and control your setup from anywhere, making power management smarter and simpler. The dongle works as a Bluetooth accessory for our inverter charger range, including Multis, MultiPluses, MultiPlus II, MultiGrid, MultiGrid II, Quattros,