Product Description: Multifunctional USB Tester with Power Off Save Function Elevate your charging experience with our Multifunctional USB Tester, designed to provide precise monitoring and enhanced functionality for all your USB devices. This digital LCD display meter is an essential tool for anyone who values efficiency and accuracy in their charging processes. Real Time Monitoring Stay informed about your device's charging status with real-time monitoring. The LCD screen displays voltage, current, and capacity simultaneously, allowing you to easily track the performance of your phone or other USB devices. Simply connect the USB interface, and you’re ready to go—no complicated setup required. Supporting Protocols Our USB Tester is compatible with multiple fast charging protocols, including QC2.0 and QC3.0. This versatility ensures that you can use it with a wide range of devices. Additionally, the screen rotation feature allows for easy reading from any angle, making it convenient to use in various settings. Power Off Save Function Never lose track of your charging data again. This tester includes 9 groups of power off save functions that temporarily store the current capacity and energy when the power is interrupted. This feature ensures that you can resume monitoring without losing valuable information. Remove Manually Flexibility is key with our USB Tester. You have the option to manually remove the accumulated data if you do not wish to continue tracking. This allows you to manage your charging information according to your needs, providing a tailored experience. Intelligent Memory Charging Capacity Our tester features intelligent memory capabilities, saving the mAH input of up to 9 groups of charging devices even after power off. This function makes it easy to verify the actual capacitance of your charging devices, ensuring you have accurate information at your fingertips. Upgrade your charging setup with our Multifunctional USB Tester. With its combination of real-time monitoring, protocol support, and intelligent features, this device is perfect for tech enthusiasts and everyday users alike. Ensure your devices are charging efficiently and accurately—get yours today!