BM2 Bluetooth Car Battery Tester 12V Monitor for Lead Acid, Automatic Battery Charge Tester with Crank Charge Test, LowVolt Alarm

It is compatible with all 12-volt vehicle batteries; Voltage: 9-16V With Bluetooth 4.0; Supports solar power systems / RVs / motorcycles / boats / cars / trucks with all 12 volts.

Automatic LowVolt Alarm: Alerts the user if the battery is low voltage when it enters the Bluetooth range within 10 meters.

Safe and Reliable: The battery charge tester tells you everything about the battery: voltage, charge, cranking power, engine starting, etc.

Free app for iOS and Android, iOS: iOS 7.1 and above Available: Android 4.3 and above

Easy to To use: The Battery Monitor application is Battery Monitor BM2. Please scan the machine's backup code or the user manual to download the software. By connecting via Bluetooth and opening the application (no code required), you can check the battery or battery charge condition, monitor the charging and starting system, and view the time of each drive.