I am no longer doing gauge mods for Tacomas so I'm selling my tester. This would be very useful for anyone doing gauges on the side. It allows you to test the gauges at every stage without installing them in the truck. This is extremely helpful for getting the needles lined up absolutely perfect. I offer no warranty, but i have used this no problem for the last few years. I am a power supply engineer. I will mod it to use an off the shelf power supply that I will include. The labeling on the rotary switch for the gear selector does not line up with the detents in the switch (sorry).
Asking $80 shipped to your door. Which is about what it cost me to make it.
Edit: I will also throw in whatever PLCC2 LEDs I have left over.