KONNWEI KW880 1. Battery tester & car obd II diagnostic tool & Battery match 3 in 1 2. Support test wide range of 12V leaf-acid batteries. 3. Accurate results in milliseconds 4. Battery life analysis, health percentage 5.Add One-key entering I/M readiness. 6.Multi-function OBD2 Automotive Scanner with good price. 7. High Quality and High Resolution TFT colorful display helps you easily to find out the troubles of your car. 8. Featured battery real-time monitoring during diagnostics, avoid un-expected happened. 9.Intergrated memory card allows storage of Trouble Codes, Live Data and freeze frame, Playback and review data when out of vehicles. 10.Lifetime update free and print via PC.