Features： 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. 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. 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. 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 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% satisfaction guarantee. Specifications： Color: Black Specifics: Measure Standard CCA:100-2000 BCI:100-2000 CA:100-2000 MCA:100-2000 JIS:26A17-24SH52 DIN:100-1400 IEC:100-1400 EN:100-2000 SAE:100-2000 GB:100-1400 Display: Color TFT LCD Screen System Voltage:12 Volts Input Voltage Range:8V-16V Power Requirements: No internal batteries required. Power on when hooked up during testing. Operating Temperature：0℃-50℃ Storage Temperature：-20℃-70℃ Package weight: 390g / 13.76oz Package size: 19.5 * 15 * 5.8cm / 7.7 * 5.9 * 2.3in Package list： 1 * Car Battery Tester； 1 * USB Cable； 1 * English manual；