Comprehensive monitoring: a must-have tool for technology enthusiasts and professionals. Accurately measures DC voltage, current and power, ideal for a variety of applications. Real-time charging power test, 6.5A high-current USB interface Direct charging power detection. Easy-to-read display: With a clear digital display, real-time data is provided at a glance, enhancing usability in various lighting conditions. Multi-scenario application, testing can do everything Comprehensive coverage of chargers, various data cables, power banks, charging detection, interface performance at a glance. Durable and reliable: Durable and durable to withstand regular use in a variety of environments from personal workspaces to professional environments. Model: KWS-MX23 Name: USB-A tester Voltage: DC 4-30V Current: 0-8A (up to 12A) Note: 12A is the peak current, not recommended for long time use Power: 0-360W Capacity: 0-6666666mAh Electricity: 0-999999Wh Timing: 0-99 hours Colour:As Shown Material:CNC Package Contents: 1 * USB Ammeter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.