The USB voltage meter is a compact, portable tool designed to measure and monitor USB power parameters. It provides precise readings of current, voltage, and battery capacity to help you assess device health, diagnose issues, and optimize performance. Key benefits - Versatile applications: ideal for a range of tasks from testing battery capacity to evaluating the performance of chargers and USB cables. Its compact, pocket-sized design supports easy transport for on-the-go diagnostics. - Easy to read: features a clear, bright display for immediate readings, enabling quick assessment of device status and timely adjustments. - Comprehensive monitoring: an essential tool for monitoring or diagnosing USB devices, delivering precise measurements of current, voltage, and battery capacity to help ensure optimal device performance. Use scenarios - Test battery capacity of portable devices and power banks to estimate remaining life and plan recharging. - Verify charger output and USB cable performance by measuring actual voltage and current under load. - Diagnose USB devices in the field or at home, monitoring power delivery to maintain reliable operation.