Keweisi USB Charge Tester – Measuring device for voltage, current & capacity

Take full control of your power! The Keweisi USB Charge Tester is the practical measuring device for anyone who wants to monitor the charging speed, current, voltage, and capacity of USB devices. The digital display shows all important measurements in real time – ideal for smartphones, tablets, power banks, chargers, and other USB accessories.

This instrument measures voltage (V), current (A), capacity (mAh), energy (Wh), and charging time. Perfect for tech enthusiasts, testing in shops, or checking cable/charging quality at home and on the go. The USB tester is compact, lightweight, and ready to use immediately – simply plug it into the USB port and connect your devices!

Robust design and easy operation make the Keweisi USB Tester an indispensable gadget for anyone who wants to ensure optimal charging performance and device safety.

Key features:

• Keweisi USB Charge Tester – digital measuring device

• Real-time measurement of voltage, current, capacity & charging time

• Clearly illuminated display for all values

• Compatible with USB-A devices: smartphones, tablets, chargers, power banks, etc.

• Measuring range: Voltage: 3.6V–7V, Current: 0–3A

• Compact, mobile, robust and easy to use

Advantages & Applications:

• Monitoring & diagnostics of the charging performance of USB devices

• Ideal for testing, repair, shops, households and tech enthusiasts.

• Detects faulty cables and weak chargers

• Increases device security and optimizes charging times

• Ready to use immediately, plug & play