The REDARC Smart Bluetooth Battery Monitor (R-BSEN500) is the most accurate 12V battery monitor on the Australian market — up to 5 times more precise than competing units — giving you a true "fuel gauge" for your auxiliary battery system. Powered by Bluetooth 5.1 technology, it streams real-time state of charge, current flow, voltage, and estimated time remaining directly to your smartphone over a rock-solid wireless range of up to 42 metres. With just three connection points and a free companion app, you can be up and monitoring your battery in minutes — no shunt wiring complexity, no guesswork.

Whether you're heading deep into the Australian outback in a 4WD, parked up in a remote free camp with your caravan, or running appliances from your motorhome or RV, the REDARC Smart Battery Monitor ensures you always know exactly how much power you have left. It's the essential upgrade for anyone running a dual-battery system, solar setup, or off-grid power configuration — designed, tested, and proudly manufactured in Australia to handle the harsh conditions that Australian adventurers encounter every day.

Key Features

• Bluetooth 5.1 connectivity streams real-time battery data to your smartphone at up to 42m range
• Up to 5x more accurate than competing battery monitors — trustworthy time-remaining estimates
• Three-point installation for fast, simple setup in any 12V system
• Designed, tested, and manufactured in Australia for Australian conditions
• Compatible with all common battery chemistries including AGM, lithium (LiFePO4), and gel