Ahhh, ok. The photo I remembered from a couple of years ago didn’t show the whole device, only the probe end. That’s why I thought it might be a battery. No matter, xfrmr is easier. And I have some button switches for other projects. It’s something I’m sure I can replicate. The difference of course is your boards come assembled, so I’ll have to do mine individually as I complete each one. Will work well I’m sure. Thx again for the help.
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