Lancol Battery Tester adopts currently the world's most advanced conductance testing technology to easily, quickly and accurately measure the actual cold cranking amps capability of the vehicle starting battery, healthy state of the battery itself, and common fault of the vehicle starting system and charging system, which can help maintenance personnel to find the problem quickly and accurately, thus to achieve quick vehicle repair. It’ll help you prevent vehicle breakdowns and maximize the performance of your battery by giving you valuable, easy to understand information about the state of your battery’s health and charge. Just download the free app, connect the Bluetooth battery tester to your battery, and follow the in-app instructions. You can even sync multiple monitors to your phone for a complete battery management system. And if your battery’s health and charge falls to a critical level, MICRO-10 will tell you.