Professional Charging Diagnostic Tool USB Power Tester Voltages Voltmeter With 20V/3.3A Testing Ranges For Mobile Devices

Features: The KWSV21 USB Power Tester precisely measure voltages (4-20V±1%) and current (0-3.3A) with 0.01resolution, featuring a reset button for screen clearings and memory retention after power loss.
Equipped with input/output voltages/current indicators, this USB voltmeter ammeter combines 0.01V/A resolution with ±1%accuracy for reliability mobile power analysis.
Ideal for electronics technicians, enthusiasts, and repair specialists needing to verifys charging outputs or diagnose USB cable/portable issue.
Perfect for testing wall charging, car adapters, and powerbanks in homes labs, workshops, or during mobile device troubleshooting.
Its compactly ABS construction and quick charging compatibility (up to 20V) make this essential tester tool user friendly for daily USB device performances monitoring.

Specifications: Component:ABS
Length:Approx.7.22cm/2.84inch
Display Type: Digital Only
Input/Output voltages:4 -20V
Input/Output current: 0-3.3A
Accuracy:±1%

Package Includes: 1pc USB Voltmeter

note: Please allow 1-2cm errors due to manual measurement.
Due to the differences between different monitors, the picture may not reflect the actual item color.