UNI-T UT658B USB Tester

a compact, intelligent measuring device designed to evaluate the performance and quality of USB power sources and cables. It helps technicians, students, and electronics hobbyists accurately monitor voltage, current, capacity, and energy consumption of any USB-powered device. With high precision measurement and a clear digital display, the UNI-T UT658B USB Tester is ideal for troubleshooting chargers, testing power banks, and analyzing fast-charging behavior in smartphones, tablets, and other USB gadgets.

Key Features

• Accurate Real-Time Monitoring
  Measures voltage (V) and current (A) simultaneously to ensure your power source is stable and safe.

• Automatic Capacity & Energy Recording
  Logs total capacity (mAh) and energy consumption (Wh) over time, essential for testing battery packs and power banks.

• Wide Compatibility
  Supports USB Type-A & Type-C inputs and works with fast-charging protocols (QC3.0/2.0).

• Built-in Safety Alerts
  Displays a warning when unsafe voltage levels are detected to prevent damage to devices.

• Memory Function
  Saves test results even after power cycling, enabling long-term analysis without interruption.

• Clear LCD Display
  Sharp, easy-to-read screen with real-time status indicators.

Why Choose UNI-T UT658B?

• Strong build quality from a trusted measurement brand

• Plug-and-play operation — no software required

• Perfect for technicians, students, and repair shops

• Helps diagnose weak USB cables and low-quality chargers

Applications

• Testing smartphone/tablet chargers

• Measuring power bank capacity

• Evaluating cable quality and voltage drop

• Checking USB power output for DIY electronics and microcontroller projects (Arduino/Raspberry Pi)

Data Sheet (Specifications)