Dual USB Current Voltage Ammeter Tester

The USB Current Voltage Ammeter Tester is a compact and easy-to-use diagnostic tool designed to help you measure the real-time voltage and current output of any USB port.

Whether you're testing chargers, checking USB power stability, or monitoring device consumption, this tester displays both voltage and current alternately on its bright LED screen for quick and accurate readings. Its one-to-two output design allows you to test one or two devices simultaneously for side-by-side comparisons.

Built with USB 2.0/3.0 compatibility, this portable tester works without any external power supply, making it convenient for technicians, hobbyists, and everyday users.

With a measuring range of DC 3V–9V and 0–3A (with capability up to 5A peak), it ensures reliable power testing across a wide range of devices. It's the perfect tool to ensure your chargers, power banks, and USB ports are performing safely and efficiently.

Features:

• Designed to measure voltage (DC 3V–9V) and current (0–3A) from USB ports with clear alternating LED display for easy monitoring.
• Equipped with dual USB output ports, enabling you to test one or two devices at the same time.
• Works without an external power supply, making it extremely portable and convenient for quick diagnostics.
• Compatible with USB2.0 and USB3.0 interfaces for wide usability across chargers, power banks, hubs, and electronic devices.
• Ideal for testing no-load and overload conditions, allowing users to check charging performance, USB activity, and device safety.