| The 9in1 multifunction tester combines voltage, current, power, impedance, capacity, energy, temperature, runtime, and battery level measurement in a single compact unit, providing a comprehensive diagnostic tool for various electrical systems and components. It supports cumulative data clearing, no-load forced zeroing, display voltage fine-tuning, display current fine-tuning, low battery voltage setting, full battery voltage setting, restoring factory settings, etc., which is easy and convenient to operate. It simplifies routine data management tasks and troubleshooting processes, ensures efficient system maintenance, and ensures reliable measurement performance over time. Features: 【9in1 Mu… | |