TS4520 Voltage Internal Resistance Tester, Professional 4-Wire Kelvin Meter with 1.77\ Color Display, For Testing and Calibrating Battery

(Efficient Voltage & Resistance Measurement): The TS4520 entry- voltage and resistance tester accurately displays both voltage and internal resistance values, allowing users to conveniently record and view the measured resistance values and delete recorded data as needed, streamlining test workflows. ( Display & Backlit): Equipped with a vibrant 1.77-inch color display, the tester provides clear visual feedback. The intuitive interface, combined with display backlight brightness, enhances the usability and readability under various conditions. (Display Value Calibration): With voltage and resistance display value functions, the tester allows users to calibrate readings to improve the display accuracy and meet the accuracy requirements of the user. Name: Voltage Internal Resistance Tester  Material: plastics Working voltage: 5VDC (do not over-voltage powersupply), need to provide their own powersupply Powersupply interface: Type-C, need to provide their own powersupply cable Charging module: integrated ternary lithium battery charging module, you can purchase and add the built-in battery by yourself Energy consumption: 50mA Display screen: 1.77-inch color display screen Test principle: AC 4-wire Test fixture: A type USB to Kelvin clip Voltage test ranges: 0.001V.45.00V  Maximum resolution 0.001V Voltage display fine-tuning: support Internal resistance measurement ranges: 0.1m Ohm .20.00 Ohm Maximum Resolution: 0.1m Ohm Internal resistance display fine-tuning: support Data recording: 6 groups of internal resistance data can be recorded, and automatic recording when disconnecting the test clamp. Auto shutdown: support 1-9 minutes standby time adjustment Backlight brightness: support 1-9 s of display backlight brightness adjustment Item size: 70 * 90 * 28mm Celsius 2.76 * 3.54 * 1.10in Item weight: 134g Celsius 4.72ounce Package size: 155 * 100 * 40mm Celsius 6.10 * 3.94 * 1.57in Package weight: 170g Celsius 6.00ounce