> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

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

**Type:** Product page · **SKU:** CE05147 · **Brand:** [Core Electronics](https://core-electronics.com.au/brands/core-electronics-australia)
**Page:** https://core-electronics.com.au/usb-charger-doctor-in-line-voltage-and-current-meter-blue.html ([markdown](https://core-electronics.com.au/usb-charger-doctor-in-line-voltage-and-current-meter-blue.html.md))

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.

## Pricing

- **Price:** $2.80 (inc GST) — $2.55 AUD, exc GST
- **Quantity discounts:** 10+ $2.29 (exc GST) · 50+ $2.16 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 22 today; more stock is typically available with a 8–12 day lead time.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE05147:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/CE05147:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

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.

We have tested the Charger Doctor to be accurate to around 10% and a minimum accurate current of approximately 300mA.

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/0/1/018-usb-charge-meter-blue.jpg)