This product can quickly and accurately measure the actual cold cranking amps capability of the vehicle starting battery, healthy state of the battery itself, and common fault of the vehicle starting system and charging system, which can help maintenance personnel to find the problem quickly and accurately, thus to achieve quick vehicle repairing. Features: LED light to show the battery status. Could test both the car and motorcycle, it perfectly design 3 in1 function and save money for you. And it is a professional battery tester providing highly-accurate results, as well as check the alternator working status. It's a much professional vehicle diagnostic tool for checking your battery system issues with its color screen and pattern design. 12-Voltage car battery and 12-Voltage motorcycle battery universal. Battery status indicator display. USB data cable connected to the computers to print test results. Conductance technology, testing is convenient, quick and accurate. Specifications: Housing Material: acid-resistant ABS plastics Voltage Measure : 7-30VDC Measure : 40-2000CCA. 3-220AH. Led Three Status: Fine(Green), Weak(Yellow), Replace(Red) Working Environment Temp: -20-50(-4-122) Tolerance: CCA10Voltage0.5% Support language: English Weight: 250g / 8.8ounce Package size: 110 * 60 * 50mm / 4.3 * 2.4 * 2.0in Package weight: 348g / 12.3ounce Packing List: 1 * Car Battery Tester