USB Charger Doctor ‑ In‑line Voltage and Current Meter Maximize

USB Charger Doctor ‑ In‑line Voltage and Current Meter

Measure the working voltage and current of your USB port with this USB Charger Doctor. Works in line so you can just inject it into your current setup without losing any connections.

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Availability: SHIPS TODAY

Last Updated: 08/16/2022





  • Measuring range: 3V - 7.5 V DC
  • Current Measurement Accuracy:
    • 0 - 3A: +/- 1%
    • 3A - 5A: +/- 3%
  • Weight: 20g
  • Transparent Design
  • 4 Digit Digital Display
  • Measures the output voltage and device with USB port working current!
  • View real time voltage and current
  • Switches between voltage and current readout approximately every 3 seconds.
  • Small form factor that fits in-line so you can monitor your USB's voltage and current rating at all times
  • No external power supply needed
  • Plug and play
  • Ideal for USB chargers and power banks
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