Features: Professional battery tester for automobile. The measure ranges is 100-2000CCA . It covers all of battery rating Standards. Suitable for most types of 12V lead-acid batteries including Regular Floded,AGM,GEL and EFBetc. Measure the actual cold cranking amps capability of the battery,the State of Health,Charge,the Internal Resistance and the Testing Conclusion (Good, Weak,Replace) Not only a great battery load tester that tests batteries cranking & charging system but also can test alternators charging and starters cranking conditions. Deigned with reverse connection protections.If the positive and negative poles are reversed,it will not damage the device or affect the car or the battery.It provides 11 languages versions for different needs. Specifications: Material:ABS Voltage Measure Ranges:DC6-12V Working Voltage:5-32V Working Temperature: -20℃ to 65℃ Screen Size :2.8inch Size:Approx.190.6mm/7.5''x90.2mm/3.55''x26mm/1.02'' Package Includes: 1x Car Battery Tester note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.