Victron Energy Smart Battery Monitor BMV-712 Bluetooth Inside With Bluetooth built-in, the BMV Smart is ready for the Internet of Things (IoT) era.  With Bluetooth being implemented in most other Victron Energy products, wireless communication between products will simplify system installation and enhance performance. =============================== Add the optional Battery Mini DC Bus Bar to your order, it fits direct on your Victron BMV-712 Battery Monitor Shunt Get all your DC cables neatly connected secured to the shunt LOAD (-ve) From mini bus bar distribute (-ve) to your Inverter, Solar Charger, Battery Charger, Color Control Panel, DC-Loads, and many others.  Threaded M10, M8, M6, M4, and M3 ports On Shunt M10 mounting hole THIS OPTIONAL BUS BAR IS NOT SUPPLIED WITH ANY BOLTS & NUTS