The Multifunctional USB Safety Tester is a compact meter that displays real-time charging parameters for USB power sources and cables.
Use it to verify voltage, current, capacity, power and data-line voltages when charging phones, tablets, laptops or power banks. It helps identify unstable outputs, incorrect charger profiles, or cable faults during everyday charging and troubleshooting.
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Real-time monitoring: Measures voltage, current, power, capacity, electric quantity and charging time with a 500ms refresh rate.
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Compatibility: Works with USB 2.0 and common quick-charge protocols (Qualcomm QC3.0/QC2.0, BC1.2, Apple 2.4A).
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Data-line checks: Displays D+/D- voltage to confirm charger detection and cable wiring.
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OTG function: Allows direct connection to mobile devices for on-the-go measurements.
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Practical sizing: Small pocket form factor for bench work or field use.
Light specifications: measurement rate 0.5 Hz, 500ms refresh; voltage and current ranges suitable for standard USB charging.
Fit statement: Compact form fits standard USB-A setups and fits easily in a toolbox or backpack.
