The VA Tester is a Voltage and Ampere breakout for measuring DC current from 0-26V at 3.2A Max. Using the screw terminal you can easily put this in inline between your power supply and your project. Just like the USB Tester. Except now you can use this for any project that isn't USB powered. Then you can probe the voltage or current with your DMM(Digital Multi-Meter).
Here is my VA Tester demo video that I previously recorded with the original version.