Performance Tool W3002 USB Voltage and Current Meter
Performance Tool W3002 lets you observe USB voltage and current while comparing a charger, cable and connected device. The displayed current reflects the connected setup's draw, rather than proving the charger's maximum output capability.
Specifications and included details
- DC voltage range: 4–20V, listed accuracy ±1%.
- DC current range: 0–5A, listed accuracy ±1%.
- Checks charger/cable voltage and connected-device current.
- Main image shows a USB plug and separate voltage/current display.
Before ordering
Match the physical connector and electrical limits to your setup. USB-C, Power Delivery and Quick Charge compatibility are not established by the stated ranges. Compare results under similar device charge level and load conditions.
Product questions and answers
Does a low current reading mean the charger is faulty?
Not by itself. The device's demand, charge state and cable can affect the current drawn.
Does the 20V range guarantee USB Power Delivery support?
No. A voltage measurement range does not establish negotiation or protocol compatibility.
Does this meter show voltage and current?
Yes. The product describes both DC measurements, with listed ranges of 4–20V and 0–5A.
Browse Diagnostics > Instrument Gauges to compare other options.
