Feature:1. High Accuracy: This battery internal resistance meter adopts customized 4 wires connection method to connect the measurement, to avoid the influence of wire resistance and contact resistance, to enhance the accuracy of the test, can measure the resistance 0m200, voltage 0V100V.2. TFT HD Color Screen: This battery internal resistance test meter adopts TFT HD color screen, the screen layout is ingenious, the function data is clear at a glance, and the visual recognition efficiency is faster and smoother.3. Multiple Core Functions: This battery voltage tester analyzer has multiple core functions, voltage measurement, internal resistance measurement, sorting function, historical data export, beep alarm, data retention, automatic shutdown, user calibration, etc. It can automatically test the internal resistance and voltage values at the same time, and the measurement results are displayed on the same screen, and it can also manually adjust the voltage and resistance levels.4. Sorting And Comparison Function: This battery voltage tester has a sorting and comparison function, which can preset eight groups of voltage and resistance values to automatically screen the good and bad batteries, and also supports the history record and export the history of the measurement of the data table, whether it is a batch screening of excellent batteries or accurately locate the problematic batteries, can be completed in an instant greatly improves the efficiency of the work.5. Wide Application: This digital battery capacity checker has a wide range of applications, can be used for cell phone battery testing, electric car battery testing, automotive repair and many other types of battery testing, suitable for a variety of situations, lightweight and space saving, can be carried out of the work of maintenance and handcraft tool.Specification:Item Type: Battery Internal Resistance TesterMaterial: ABSResistance: Range: 0-200, Accuracy: 0.5%, Gear: Auto, 20m, 200m, 2, 20, 200Instrument Testing Signal Frequency: AC 1KhzCharging: Type C Interface (5V/1A)Built In Battery: 1 x 1000mAh Rechargeable Lithium Battery (Included)User Calibration: SupportedSorting Mode: SupportedHistorical Records: SupportedData Export: Supported.Package List:1 x Main Unit1 x Clip Test Line1 x Data Cable1 x Manual