Features: High precise Battery Impedance and Voltage Tester with LCD Display:Measure the internal resistance and voltage of your 18650 batteries with accuracy and ease. Double Functionality;This device allows you to simultaneously test both the impedance and voltage of your batteries, providing comprehensive insight into their performances. Whether you're a battery manufacturer, maintenance professional, or a research scientist, this tester is designed to meet your needs From battery production lines to maintenance workshops and scientific laboratories, this tester finds its place in various settings. Superior Quality and Efficiency:Made from durable ABS material, this tester offer high precise, efficiency, and environmental friendliness, making it an choice for battery enthusiasts. Specifications: Material:ABS Size:Approx.16x8x3cm/6.3x3.15x1.18in Model:RC3563 Measuring ranges: Resistance: 0.0001mΩ~200Ω Voltage: 0.0001V~±100V direct current Package Includes: 1xRC3563 Battery Voltage Internal Resistance Tester 1xTester Clip 1xTester Probe note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.