Bluetooth 4.0 Battery Monitor
BM2 is a kind of auto battery monitoring for all 12V car batteries, woks via Bluetooth and mobile phone APP, to check the battery status and relative systems in the cars. Before use it is necessary to upload the APP to your phone either iPhone or Android as below: 1. iPhone –Batter Monitor BM2, App store 2. Android- Batter Monitor BM2, Google Play You can also use the QR code on the auto battery monitor to download the App.