UT658 USB Tester

is a high-precision measuring device designed to help users evaluate the performance and reliability of USB chargers, power banks, and data cables. Whether you are an electronics technician, repair engineer, or a tech hobbyist, the UT658 USB Tester allows you to monitor voltage and current in real time, detect faulty cables, and analyze charging efficiency for smartphones, tablets, wireless earbuds, cameras, and any USB-powered device. With its compact design and easy plug-and-play interface, this tester delivers accurate measurements without requiring additional software or complex setup.

Key Advantages

• Real-time measurement
  Displays voltage (V) and current (A) simultaneously so you can detect unstable or unsafe power sources.

• Capacity & energy calculation
  Tracks mAh and Wh to evaluate true battery capacity of power banks.

• High accuracy
  Designed to meet professional testing demands with minimal measurement error.

• Auto data recording
  Saves values for capacity and charging time for long tests.

• Wide compatibility
  Supports USB chargers, power banks, laptops, USB hubs, and adapters.

• Safety protection
  Alerts when abnormal voltage or current is detected.

Why professionals trust it

• Detects fake or poor-quality USB cables

• Helps compare different chargers and their efficiency

• Small enough to carry in your toolkit or pocket

• No drivers, no apps — just plug and read

Ideal use cases

• Testing mobile chargers in repair shops

• Checking cable quality and voltage drop

• Measuring power bank efficiency

• Verifying USB port output in DIY electronics projects

Data Sheet (Specifications)