Dual USB Charging Detector & Voltage/Current Tester

Know exactly what's happening with your USB chargers, cables, and power banks. This compact Dual USB Voltage & Current Tester gives you real-time readings of voltage, current, and battery charge status — all in one handy device. Whether you're diagnosing a slow charger, verifying your power bank's output, or testing a cable's data/charge capability, this meter puts accurate data right at your fingertips.

Key Features

Dual USB Ports: Test two USB sources simultaneously — perfect for comparing chargers or cables side by side.
Live Voltage & Current Readings: Instantly displays voltage (V) and current (A) so you can verify your charger is performing as expected.
Battery Capacity Monitoring: Tracks charge flow to help you gauge battery health and charging efficiency.
Data & Communication Testing: Built-in data calibration function helps you identify whether a cable supports data transfer or charge-only mode.
Compact & Lightweight: Measures just 60.4 × 28 mm and weighs only 20.75 g — slips easily into any tech kit or travel bag.
Available in Multiple Configurations: Choose from 3 color/quantity options (1 pc, 2 pcs, or 3 pcs) to suit your needs.
SMD Included: Each order comes complete with SMD components for reliable performance out of the box.

Who Is This For?

This tester is ideal for tech enthusiasts, DIYers, travelers, and anyone who wants to ensure their USB charging setup is safe and efficient. Use it at home, in the office, or on the go to quickly audit any USB charger or cable.

Specifications

Dimensions: 60.4 × 28 mm
Weight: 20.75 g
Ports: Dual USB
Functions: Voltage measurement, current measurement, battery charge tracking, data calibration
Quantity Options: 1 pc, 2 pcs, 3 pcs

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Frequently Asked Questions

Q: What does the Dual USB Voltage & Current Tester actually measure?

A: This USB tester measures the voltage (V) and current (A) flowing through your USB charger or cable in real time. It also tracks cumulative charge capacity, making it easy to evaluate the performance and efficiency of any USB power source or cable.

Q: Can I use this USB tester to check if my cable supports data transfer?

A: Yes! The built-in data calibration function allows you to determine whether a connected USB cable supports data communication or is a charge-only cable — a handy feature for sorting through your cable collection.

Q: Is this tester compatible with all USB chargers and power banks?

A: The dual USB charging detector is designed to work with standard USB chargers, power banks, car chargers, and any USB power source. Simply plug it in between your charger and device to get instant readings.

Q: How many units come in an order?

A: You can choose from three quantity/color configurations: 1 pc, 2 pcs, or 3 pcs. Each order includes the tester unit(s) with SMD components ready for immediate use.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.