Measure voltage 4–20 V and current 0–3 A in real time. Ideal for verifying whether a charger and cable provide the correct output.
The tester retains measured values until manually cleared. Start a new measurement with a single press of RESET.
The readable display shows voltage, current, time, and capacity. Easy to use with USB 3.0 ports and backward compatible.
Check the condition of your chargers and cables at a glance. This universal USB tester displays voltage (V), current (A), capacity (mAh), and measurement time right on a bright LCD. With accuracy up to ±1%, you get reliable data for diagnosing charging of phones, tablets, and accessories.
Setup takes seconds — insert the tester between the power source and the device. The integrated memory keeps values even after disconnecting until you press the RESET button. The lightweight, durable design with a transparent blue body fits easily in your pocket.
