Fangrui Product Details 1. High Accuracy Speed: Measure Resistance (0-100) And Voltage (-110v To +110v) With 0. Precision Using 1khz Ac Method And Four-wire Kelvin Clips. 2. Smart Sorting Mode: Set Custom Voltage/resistance Thresholds To Instantly Classify Lithium Batteries (soft Pack/cylindrical) And Screen Defective Units. 3. Portable User-friendly: Compact Design With A 2.8inch Tft Screen, Adjustable Stand, And Type-c Rechargeable 1200mah Battery. 4. Customizable Features: Personalize Display Colors, Shutdown , And Save Calibration Values For Consistent Performance. Voltage Measuring Range:0 - 110v(dc) Voltage Gear:automatic, 1v, 10v, 100v Resistance Measuring Range:0 - 100 Resistance Gear:automatic, 10m, 100m, 1, 10 Accuracy:0. Instrument Frequency:ac 1khz Rechargeable:type-c Interface (5v/1a) User Calibration:support Sorting Mode:support Test Lead Length: 0.8m Battery Capacity: 1200mah Screen: 2.8inch Tf Hd Display Color: Orange Material: Abs Package Contents: 1 X Battery Resistance Tester 1 X Kelvi