High-Definition Display: 1.77-Inch Tft High-Definition Color Screen Display, The Panel Is Clearly Visible; Automatic Recording Function: Intelligently Record 6 Sets Of Data To Easily Complete The Measurement Work Energy-Saving Mode: Click The M Function Key To Switch To The Backlight Setting And The Display Brightness Is Adjustable The Host In Non-Measuring State Automatically Shut Down After 15 Minutes. The Product Is Compact And Widely Used. Working voltage:DC5V (do not overvoltage power supply),you need to bring your own power supply Power supply interface:Type-C,you need to bring your own power supply cable Built-in battery:No built-in battery Charging module:Integrated ternary lithium battery charging module,you can install a built-in battery by yourself Working energy consumption:50mA Display screen:1.77-inch TFT color display Test principle:AC 4-wire method Test fixture:Type A USB to Kelvin clip Voltage test range:0.001V-45.00V,maximum resolution 0.001V Voltage display fine-tuning:supports internal resistance measurement range:0.1m-20.00,maximum resolution 0.1m Internal resistance display fine-tuning:supported Data recording:6 sets of internal resistance data can be recorded,automatically recorded when the test clamp is disconnected Automatic shutdown:supports 1-9 minutes standby time adjustment Backlight brightness:supports 1-9 levels of display backlight brightness adjustment name:TS4520 Voltage Internal Resistance Tester Colour:As Shown Material:ABS+Plastic Note:It is forbidden to test AC power and voltage above 45V. Tips:The product may be updated constantly ,Due To Different Batches,The Actual Product May Have Slight Differences Or Color Differences,Which Does Not Affect Use Package Contents: 1 x Host(Without battery) 1 x USB-A To Kelvin Clip Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.