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Monitoring power flow between USB sources and hardware requires precision. Tracking 3-20V and 0-3A, the Keweisi KWS-10VA uses a dual LED screen. Plug this USB detector into any port to verify charger output or cable integrity immediately.
Key Features
- Simultaneous Dual Display: 3-20V and 0-3A LED readouts. View both metrics without toggling buttons during testing.
- With Twin Output Ports: Two USB 2.0 female connectors. Check total current draw from one source while charging two devices.
- Under Self-Powered Circuitry: Draws energy directly from the USB male input. No external batteries needed for mobile circuit testing.
- Within the 20g build: ABS housing with ±1% measurement accuracy. Resists road dust during outdoor field diagnostics.
Frequently Asked Questions
How to check USB charger voltage?
Insert the tester into the charger's USB port. The LED screen displays the output voltage and current draw of any connected device.
Is Keweisi KWS-10VA accurate?
This unit maintains a ±1% tolerance level. It provides reliable data for identifying voltage drops in low-quality charging cables.
