Compact and Portable Design Its compact size (USB/Type-C Wide Measuring Range With DC 4.5~36V voltage measuring range and 0-5A/0-8A current measuring range, it fits a wide range of USB and Type-C devices. Fast Charging Protocol Detection Automatically detects various fast charging protocols, making it suitable for all kinds of cell phone users looking for fast charging solutions. Real-time Charging Status Detection This voltage meter detects the charging status in real time, allowing users to monitor the voltage and current while charging multiple devices. User-friendly Operation It features a multi-function button for easy operation, including display switching, reset, and data storage group number switching. Multi-function Display The digital LCD screen offers a variety of parameter displays, including voltage, current, power, capacity, and temperature, providing comprehensive monitoring.