The SmartShunt is an all in one battery monitor, only without a display.
Victron Energy SmartShunt - Van Land
Victron SmartShunt 500A/50mV IP65 - Water Resistant Bluetooth Battery Shunt SHU065150050
Victron Energy SmartShunt 500 amp Battery Monitor (Bluetooth) : Automotive
Victron Energy SmartShunt 1000A/50mV IP65
SmartSHUNT - LXNAV Marine
Victron's IP65-rated SmartShunt is an all-in-one battery monitor. From your phone view state of charge, time to go, 30 days of data, and more.
SmartShunt & IP65 SmartShunt Battery Monitor
Victron SmartShunt Battery Monitor 500A SHU050150050 & Optional DC Mini Busbar
SmartShunt - Victron Energy
How to Install a Wireless Marine Battery Monitor