EXPANDED 24V COMPATIBILIT - Upgrade from basic 12V monitors. Engineered to support 24V systems in addition to 12V/6V, the BM300 Pro empowers you to confidently monitor the battery health of your diesel truck, large RV, or boat. This expanded capability meets the needs of more demanding power systems, providing a monitoring solution that grows with your requirements KEY FEATURES - BM300 Pro monitors battery health, including voltage, cranking & charging system and driving records. It monitors abnormal battery conditions and takes appropriate measures to protect the battery. With 72 days of data storage, you can compare changes before and after taking measures, giving you a better understanding of your battery's status BLUETOOTH 5.3 Ver. - Feel the technological leap. Compared to older Bluetooth vers., BM300 Pro offers a rock-solid connection, extends the usable range from your phone, and consumes significantly less power, ensuring both device and battery longevity. Plus, connect to Bluetooth even faster. Tip: For optimal performance, we recommend using the device in an open environment, free from thick walls or metal structures EASY TO USE - Install once and permanently fix onto your battery without the trouble of repeated installation. Access the battery’s health data directly from your phone and enjoy real-time monitoring by opening the app. Additionally, the power consumption is as low as 1mA, almost negligible- making it a hassle-free stethoscope for your car battery ＞99.6% ACCURANT READINGS - Equipped with an intelligent chip for precise data readings. The connector design features red and black rubber handles, making it easy to place on battery terminals and achieve a snug fit for more accurate readings the longer you monitor RELIABLE SAFETY MEASURES - Built-in Reverse Connection & Short-circuit Protection function ensures user safety during operation. The fire-resistant ABS shell & IP67 Waterproof enhances durability. In addition to these safety features, it also boasts exceptional alarm functionality. Which will notify you via the APP when the battery encounters malfunctions, abnormal voltage or power, alleviating your concerns in this regard WIDE APPLICATION - BM300 Pro battery monitor is compatible with all 6V/12V/24V lead-acid batteries, including conventional flooded, AGM flat plate, AGM spiral, gel and EFB batteries for cars, trucks, hybrid vehicles, off-road vehicles, boats, RVs, motorcycles, and even solar power systems. It can meet the needs of different types of batteries

Bluetooth Battery Monitor BM300 Pro

Main Features:

1. Compatible with all 6V 12V 24Vvehicle batteries; 

2. Cranking system & Charging system (alternator);

3. Review voltage/Soc/Temperature history in graph mode;

4. Alert mobile phone if some data abnormal;

5. Short-circuit & Reverse connection protection;

6. IP67 Waterproof;

7. List the time of each driving;

8. Data stored in device up to 72 days if out of sync;

9. Ultra-low power consumption, average current: 1 mA;

10. Connect with battery directly, no code;

11.Free app for iOS & Android users;

12.Temp: -30°C~85°C (-22°F~185°F)

Battery Monitor BM300 Pro Principle: Check battery state on phone APP via Bluetooth 5.3 when device is installed;Support Android 6.0 & iOS11 & More