USB Power Meter Voltage Current Tester With Digital Display For Accurate 4-20V 0-3A Measurement In Phones Tablets

Features: Multi Parameter Monitoring : Accurately displays voltages, current, charging capacity, and working time with 0.01V/0.01A resolution and ±1% precisions, providing real time into device power consumption. Wide Compatibility : Supports 4 20V voltages and 0 3A current detections, suitable for phones, tablets, power banks, car chargers, and other USB powered devices for versatile testing. User Friendly Operations : Features a RESET button for quick data clearing and auto saves capacity/timing data after power off, ensuring seamless continuous testing. Safe & Clear Design : Clear ABS housing with LED display ensures readability, while built in low resistance circuitry (0.1Ω) minimizes measurement errors and protects devices. Compact & Portable : Lightweight and plugs and play design (59×23×13.5mm) requires not external power, ideal for on the go testing or lab diagnostics.

Specifications: Component: ABS. Size:Approx.59mm/2.32''x23mm/0.91'' Color:Blue,Black voltages measurement: Input/output voltages 4–20V, resolution 0.01V, accuracy ±1%. Current measurement: Input/output current 0–3A, resolution 0.01A, accuracy ±1%. Line loss: about 0.1Ω. Capacity statistics: 0–99999mAh. Timing function: 0-99H (unit: minutes), data memory after power failure

Package Includes: 1Piece USB Tester

note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.