Digital USB Power Tester | Mini USB Charger Doctor | Transparent Voltmeter & Ammeter | Mobile Power Current Voltage Detector

Specifications:

1. Type: USB digital voltmeter & ammeter tester
2. Input Voltage Range: DC 3.5V – 7V
3. Test Voltage Range: DC 3.5V – 9.0V
4. Current Detection Range: 0–3A
5. Display: Dual digital LED (Voltage & Current)
6. Power Source: USB direct plug-in (no external supply needed)
7. Design: Compact, lightweight & transparent casing
8. Size: Mini pocket-sized for portability
9. Accuracy: High precision, real-time monitoring
10. Compatibility: Works with USB chargers, power banks, cables, and devices

Description:

This Digital USB Power Tester (also known as a USB Charger Doctor) is a handy tool for monitoring voltage and current in real-time. With its transparent mini design, it is perfect for testing USB chargers, power banks, and cables to check charging efficiency. The dual LED display clearly shows voltage and current simultaneously, helping you detect faulty chargers or low-quality cables. Ideal for both professionals and DIY users.

Applications:

1. Test USB chargers, adapters, and power banks
2. Measure charging speed for mobile phones & tablets
3. Detect faulty or low-quality charging cables
4. Monitor current/voltage during DIY electronics projects
5. Useful for labs, technicians, and hobbyists