Features: Experience precisions charging insight with the USB Tester, featuring a backlit display for monitoring of voltage and current on your USB devices. This digital multimeter is engineered with ABS material for durability, making it a must tool for testing cables, and power banks. For enthusiasts, electronic hobbyists, and professionals alike, this USB tester provides essential data to optimizing device performances and safety. Whether home, in office, or on the go, this power meter tester ensures you can easily carry it to maintain charging efficiency anywhere. Protect your devices from damage with the USB Tester's ability to detect overloads and short circuits, ensuring your electronics remain safe while charging. Specifications: Material: ABS, Electronics Measurement Voltage: 5-30V Current: 0-5.01A Capacity: 0-99999mAh Electricity: 0-99999mWh Power: 0-299.999W Working Temperature: -10 to 60℃ Working Humidity: 10-80 Size: About. 50mm/1.97in Package Includes: 1pc USB Tester note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.