Welcome to the store! 1、[Versatile Use] This USB tester can measure various DC power sources and devices such as power adapters, charging cables, data cables, laptops, power banks, desk lamps, and more. 2、[Comprehensive Measurements] This USB meter can measure voltage, current, capacity, energy, power, and temperature of various batteries accurately and efficiently. 3、[Advanced Features] Equipped with features such as full charge cut-off, timed cut-off, charging timer, USB data D+ D‑ fast charging protocol, voltage measurement display. Measurements can be displayed wirelessly on your Bluetooth-enabled phone. 4、[Enhanced Performance] Designed with a high-speed fan and aluminum heat sink, along with a large package, high currents, and high voltage field effect transistors, the overall performance is significantly improved. 5、[Wide Compatibility] Compatible with multiple fast charging protocols, supports multiple protocols such as QC PD: 2.0 3.0 4.0MTK. Item Type: USB Tester Material: ABS Model: UD18L Voltage Measurement Range: 3.600-32.00V Current Measurement Range: 0.000-5.100A Accumulated Capacity Range: 0-99999mAh Accumulated Power Range: 0-999.99Wh Power Measurement Range: 000.00-163.00 W Temperature Measurement Range: 0-80℃ Maximum Timing: 999 hours 59 minutes 59 seconds USB D+ Voltage Range: 0-2.99V USB D- Voltage Range: 0-2.99V Refresh Time: >500mS/time Measurement Rate: About 0.5 times/second Color Screen Meter Measurement Range: Voltage Range: 3.60-32.0V Current Range: 0.00-5.10A Power Range: 0.00-150W Constant Current Load Measurement Range: Voltage Range: DC5-24.0V Current Range: 0.2-4.8A Power Range: 45W 65W High Power Load Discharge Aging Test: 65W: Within 3 minutes in a short time 45W: Durable aging 1 x USB Tester 1 x User Manual 1 x Storage Box Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!