BM2 12V Bluetooth 4.0 Car Battery Tester 1. Applicable to all Android and iOS systems. 2. Accurately measure battery data, with functions such as detection of power and voltage, battery startup ability and battery charging ability. 3. Compatible with all 12V car batteries, with an average power consumption of 1.5mA. 4. Multiple languages are available, and the APP can automatically match the corresponding language or the language selected by the mobile phone system. 5. Languages: English, Arabic, Czech, French, German, Italian, Polish, Romanian, Russian, Spanish, Slovak, Chinese 6. Bluetooth connection: the battery status can be checked at any time within the Bluetooth range 7. Built-in protection circuit, reverse connection of equipment will not cause battery or equipment damage 8. Parameters: Average power consumption: 1.5mA Working temperature: -40~90 degrees Celsius Input voltage: 6-20V Scope of application: 12V automobile, motorcycle lead-acid lithium battery