Zr Function : Our battery tester features a ZR function that allows you to measure internal resistance down to 0.30 milliohms, ideal for detailed analysis. Digital Lcd Display : The intuitive digital lcd display makes it effortless to read and interpret your test results, even in challenging lighting conditions. True 4-Wire Ac Sine Measurement : Benefit from the accuracy and reliability of our true 4-wire ac sine wave measurement method. Battery Sorting Function Included : Enhance your productivity with our sorting function, which sorts batteries by internal resistance and voltage. Low Power Consumption and Multiple Power-Saving Options : Maintain optimal power efficiency while enjoying the full suite of our tester's features. Elevate your battery testing capabilities with our Battery Tester featuring a ZR function. This innovative device allows you to measure internal resistance with unparalleled precision, ensuring that no detail goes unnoticed. Combined with a user-friendly Digital LCD Display, our tester offers a seamless experience, whether you're conducting routine checks or in-depth analyses. With power-saving features and a robust design, this tester is your go-to tool for all your battery testing needs. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.