BK100 is using the newest BT technology to detect the car battery, you no have to stand in front of the car for your testing work, after connecting the car battery you can open the app on your phone/tablet for car battery testing work, which is customer friendly and easy to use. With BK100 automotive battery tester, check the overall health of the battery, including the cranking test, and run a complete system charging test. The cranking test is to test and analyze the motor to check if the motor is working properly, and the charging test is to check the state of the charging system to avoid damaging the battery. It is much more convenient than driving a few miles to a nearby auto repair . Blue- wireless car battery tester is compatible with all 6 volt and 12 volt lead-acid batteries include regular flooded, flat plate, spiral, GEL, and batteries with the test range (100-2000 ). Compatible with , motorcycles, trucks, , ATVs, SUVs, boats, yachts, mowers, and even golf carts. BK100 is Plug-and-Play, and it provides Accuracy testing reports within seconds, greatly improved the testing speed compared to other battery testers. It also has a polarity reversal protection function. The clip reversal will not damage the tester, and will not have any adverse effects on the car and the battery. BK100 can directly test the loss of power battery, no need to be fully first and tested. Support for multiple languages such as English, Spanish, , Russian, Italian, French, Portuguese, etc. The actual language depends on the system language setting of your phone/tablet. The language display will your system language change. Model : BK100 Item name : lead acid battery tester color:Black :Plastic + Metal Package Contents: 1 x Car Motorcycle Battery Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.