YEREADW USB C Tester is a compact USB-C power meter for accurate voltage, current and protocol diagnostics. Clear, colour readouts help enthusiasts and technicians spot inefficient chargers and verify fast-charge behaviour. Worth adding to a toolkit for anyone who regularly tests chargers and power banks?
⚡ At a Glance
- • Measurement Accuracy: Accuracy ± (1%+5) ensures dependable voltage and current readings
- • Best for: Electronics enthusiasts, gamers and technicians testing charger performance
- • Not ideal for: Users who rarely check charging equipment or need full device management
Measures 4V–30V and 0–6.5A while detecting multiple fast-charge protocols. LED colour display shows voltage, current, power, capacity, energy, timing and CPU temperature with button controls for cycling and resets.
Reliable Readings – Thanks to improved measurement accuracy ± (1%+5)
Measurement circuitry uses calibrated sensing to deliver voltage and current accuracy of ± (1%+5), suitable for low- to mid-range USB-C power checks. The accuracy range matches typical needs for checking chargers, phones, tablets and power banks.
Dependable readings make it straightforward to compare chargers and spot faulty cables or underperforming adaptors, reducing guesswork during troubleshooting.
Wide Protocol Coverage – With PD2.0/3.0, QC2.0/3.0 and vendor fast-charge support
Firmware recognises multiple charging standards including PD2.0/3.0, QC2.0/3.0, FCP, SCP, AFC, PE, DASH VOOC and Super VOOC, allowing correct handshake detection during measurement. Protocol detection runs alongside voltage and current sampling for comprehensive diagnostics.
Ability to identify common fast-charge protocols helps verify whether a charger negotiates the expected charging mode with a device, useful when comparing adaptors or validating power banks.
Clear Operational Feedback – Thanks to LED colour display and button controls
High-definition colour LED interface displays multiple parameters such as voltage, current, power, capacity, energy, elapsed time and CPU temperature. A single button cycles screens, double-click rotates displayed content and a long press clears accumulated capacity and timing.
Readable metrics and easy controls speed up testing sessions, making it simple to log capacity, monitor charge sessions and reset data between tests.
✨ The 4 Key Reasons for YEREADW USB C Tester
- Portable Inline Design - Ideal for on-the-go testing and pocket-sized toolkits
- One-Button Controls - Quick screen changes, rotation and resets without menus
- Capacity Tracking - Records charge capacity and elapsed time for repeatable tests
- Broad Compatibility - Works with chargers, power banks, phones and tablets reliably
📋 Technical Details at a Glance
- Category: USB C power meter
- Brand: YEREADW
- Product ID: B0DF2KFDC8
- Display: LED colour high-definition display
- Measurement Range: Voltage 4V–30V, Current 0–6.5A
❓ Frequently Asked Questions
Q: What voltage and current ranges can be measured?
A: The meter measures voltage from 4V to 30V and current from 0A to 6.5A, covering common USB-C charging scenarios.
Q: Which fast-charging protocols does it detect?
A: Detection includes PD2.0/3.0, QC2.0/3.0, FCP, SCP, AFC, PE, DASH VOOC and Super VOOC for broad charger compatibility.
Q: What information appears on the display and how do the buttons work?
A: The colour LED shows voltage, current, power, capacity, energy, timing, CPU temperature and D+/D- voltages; single press cycles screens, double-click rotates content, long press clears capacity and timing.
🏆 Our Verdict
Well suited to electronics enthusiasts, digital gamers and technicians who need repeatable, accurate charging tests. The combination of reliable accuracy, extensive protocol detection and a readable LED interface makes it a practical diagnostic tool. While initial outlay needs consideration, frequent users gain clear long-term value from faster troubleshooting and dependable comparisons.
