3Pcs USB Voltage Current Tester, Mini USB Power Meter Voltmeter Ammeter for Charger and Power Bank Testing

About this item

• USB Voltage and Current Tester: This USB charging tester is designed to measure both voltage and current for USB power supplies and USB devices, helping you check charger output, USB port performance, and device power consumption quickly and conveniently.
• Wide Testing Range: Supports a voltage range of 3V to 7.5V and a current range of 0 to 2.5A, making it suitable for testing mobile phone chargers, power banks, USB ports, USB flash drives, and other common USB-powered devices.
• Accurate and Reliable Readings: Built with a new-generation 4.5-digit dual-integrating conversion IC and a precision bandgap reference source, this tester delivers accurate readings, stable operation, reliable performance, and strong anti-interference capability.
• Alternating Voltage Current Display: The tester alternates between voltage and current readings for simple, practical, and easy-to-read operation, allowing users to monitor USB power conditions without complicated setup.
• Compact and Portable Design: With a small size of 53 x 35 x 14 mm, this USB tester is easy to carry and use anywhere. It operates directly from the USB connection, so no additional power supply is required.