Dual USB Voltage and Current Tester

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Internal Reference: DL-039

Dual USB Voltage and Current Tester

This is a great volt and amp meter to see the load used by modules and microcontrollers. You can easily see, as an example, how much power is consumed by your microcontroller project.

Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project. This plastic dongle plugs between a USB device and passes the data lines through. There's a 0.05-ohm resistor in line with the power pin that is used to measure the current draw. The Doctor's digital display instantly reads the numbers out for testing devices such as chargers, cables, and cell phones.

You can use this device from 3.5-7VDC input voltage (although most USB devices tend to hover around 4.75 to 5.25) and up to 3A of current. It displays both voltage and current readouts. It's a very handy tool for testing USB devices, checking load levels, and debugging battery chargers and boost converters.

Dual USB Voltage and Current Tester spec:

  • Voltage range: 3.3V-9V
  • Current range: 0-3A
  • Voltage display: red
  • Current display: blue
  • Output: 2 USB
  • Size: 52mm x 34mm x12mm
  • Weight: 16g

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Dual USB Voltage and Current Tester