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Core Electronics > Retired

USB Charger Doctor - In-line Voltage and Current Meter (Clear)

SKU: CE05155

$7.90 AUD, inc GST
$7.18 AUD, exc GST

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USB Charger Doctor - In-line Voltage and Current Meter (Clear)

SKU: CE05155

$7.90 AUD, inc GST
$7.18 AUD, exc GST
3 reviews 0 5 4.7

Retired Product

Replaced by: 018-USB-CHRG-MTR-B


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

This product has been replaced by: 018-USB-CHRG-MTR-B

Oh no, what is going on with my USB device, it's getting HOT. Queue the USB Charger Doctor. Thanks to this little gadget you will be able to watch and care for your USB device or powered projects.

The Doctor plugs between a USB device and passes the data lines through. The digital display will instantly read the numbers out for testing devices such as chargers, cables and mobile 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 flips between voltage and current readouts every 3 seconds or so. It's a very handy tool for testing USB devices, checking load levels and debugging battery chargers and boost converters.

This product is listed in:

Documentation and Resources:
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...

Product Comments

Customer Reviews

  1. Review by James verified purchaser

    Interesting device. Was looking at building something like it, but certainly not for less than $10. The plug in port seemed to be angled slightly wrong. The USB stick was (initially) hard to insert, but after a few goes it was ok.
    50mA used by some USB sticks and some not even registering. (ie less than 10mA) I like it !!
    (Posted on 25/11/2017)

  2. Review by Finn verified purchaser

    Works well (Posted on 24/05/2016)

  3. Review by Tim - Fun little widget verified purchaser

    Fun little widget to have in your bag for next time someone says your charging cable is stuffed. Does seem to cause some interference when running data through it (like a USB mouse) but its for charging so didn't expect much there. (Posted on 20/11/2014)

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!