The digital AC meter I received for the variac upgrade indicates voltage, but does not indicate current. I tried various loads to no avail (lamp shown plugged-in), moved wiring, etc. no worky.
![Angry >:(](https://www.eevblog.com/forum/Smileys/default/angry.gif)
I took it out and used another similar (but different size and type) digital add-on meter I bought for my emergency generator project (I'll show that project another day). I temporarily wired it into the variac, and it did work OK.
I took the little meter apart. The coil checks OK. Other components check OK. It has a microcontroller, but all markings have been obliterated. After wasted days of messaging the incompetent seller, who responds exactly one time every 24 hours (maybe) and has no effing idea what the device does, I had to call Ebay and get them to step in. They are issuing my refund.
Project on-hold ...
![Popcorn :popcorn:](https://www.eevblog.com/forum/Smileys/default/EatingPopcorn.jpg)
Edit: I did replace the power switch with a new one.