1,Data readings,the KONNWEI KW600 12V car battery tester is able to effectively analyze and read important car data such as voltage, internal resistance, cold cranking amp and AH capacity, status of charge, status of health. 2,Accurate measurements,this professional automotive battery tester provides accurate results, calculates the cold cranking capability of the battery and the aging extent, allowing for a quicker, more precise car repairing. 3,Widely compatible,Beginner or expert, this car battery diagnostic tester can be used with a wide selection of 12V 100-2000 CCA regular flooded batteries, AGM flat plate, AGM spiral, as well as GEL batteries. 4,Extra features,the KW600 car battery tester displays test results in text and graphing, displaying the real-time battery voltage in wave form. With an intelligent 2.4in LCD screen and STM-32 main chip, reading access is practical and rapid! 5,Lifetime software update konnwei, KW600 unit provides Life-time free update service is supported by KONNWEI BTlink app with 3 years manufacture warranty. Just download the software from website in the manual, then follow on-screen instructions to go, very easy. If you have any problem, please feel free to contact us at the first time, our customer service has always been there to help, we promise to give the customer 100 percent satisfaction guarantee. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store