Re: Quick-and-dirty testgear: mains voltage monitor.
bigclive did a feature video on these 3 digit mains voltmeters a while back.
If I was to use one I would either incorporate it into the incoming fuseboard/consumer unit board, or alternatively reverse engineer an LED GLS size lamp (assuming I could still find one with a clear envelope)and fit it in there. At least then it would be portable.
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