Battery Monitor
Projecta 500A Bluetooth Battery Monitor — Smart Shunt, iOS & Android
Smart shunt + Bluetooth display — monitor two battery banks from your phone
Why this product?
Knowing your battery's true state of charge is critical for off-grid confidence. Guessing based on voltage alone is unreliable. The BM500-BT gives you accurate current, voltage and SOC data on your phone in real time.
- Bluetooth — monitor from your phone anywhere
- Accurate to ±0.4% current, ±0.3% voltage
- Compatible with 12V, 24V and 48V
- Suits AGM, GEL, Wet and Lithium batteries
- Easy to fit — shunt, monitor and cables included
- CAN and RS485 support
- iOS and Android app
About this product
A clever combination of a smart shunt with an informative display and Bluetooth connectivity, the system displays critical primary and secondary battery information. Ideal for camper trailers, caravans, 4WD canopies and boats. Key features include the ability to control and monitor via Bluetooth, an easy-to-read display, easy fitment, multi-chemistry compatible (AGM (Absorbed Glass Mat — a common type of sealed lead-acid battery). Gel, Lithium). Kit includes shunt, monitor and cables.
Why this beats the alternatives
Bluetooth connectivity means you can check your battery status from anywhere on the boat or van without going to the monitor. Compatible with 12V, 24V and 48V systems and all common battery chemistries.
Who it's for
Caravanners, boaties and 4WD users who want accurate, real-time battery monitoring accessible from their smartphone — without running wires to a fixed display.
