SYOSI USB Tester Power Meter, Digital Multimeter, Voltage and Current Tester Meter, Mobile Phone Battery Tester, Power Bank Capacity Tester (White)

【Versatile Voltage and Current Range】Our USB current and voltage charging tester is designed for comprehensive monitoring, supporting an input and output voltage range of 4-30V and a test voltage of 0-3A. Its capacity measurement capabilities extend up to 19999mAh, making it suitable for a variety of testing needs. 【Compact Design with Added Convenience】The tester's compact size, measuring just 5.8*2.7*1.9 cm (2.29*1.06*0.75 inch), makes it highly portable and user-friendly. Accompanied by a 20cm USB extension cable, it provides extra flexibility for different testing environments. 【Simultaneous Data Display】Equipped with an LCD screen, this current and voltage tester can simultaneously display current, voltage, and capacity data. This feature allows for easy and immediate access to all the essential information you need for effective monitoring. 【Advanced Data Management】The charging tester is capable of saving multiple sets of test data. Its power failure saving function ensures that data transmission is uninterrupted, providing reliability and consistency in data tracking. 【Broad Application Range】This USB voltage tester is a versatile tool, capable of measuring the power supply or consumption of various USB devices, including cell phone chargers, USB flash disks, and more. It's an ideal solution for anyone needing to the working voltage and current of USB ports and device outputs.