Power Tester/Injector - GPUs & Electronics; Diagnostics & Testing, etc.

"Homebrew" Power Tester/Injector - Electronics Diagnostic Tool!!

I built this device to allow me to measure the power being drawn by a device (meter on the right). If a device is working, it'll pull a certain amperage and voltage when power is applied.
But it can also inject power (meter/device on the left) to force very low amperage into a device, so I can check that device's board with a thermal camera for shorts.