Someone at my work has a really nice electronic calipers that is solar powered (think like a calculator… low enough power requirement that ambient light is more than enough) and thus will effectively never need battery change.
That is really clever, should really be used more often.
When it comes to kitchen scales, most Kenwood food processors double as very accurate and premium kitchen scales with backlight, as as they are plug-in they don;t need battery - great option if you have the counter space - you just place a platform where the chopping bowl goes.
After someone nicked my electronic calipers, I got mechanical ones - they are perfectly adequate for all home use so far.
I used to use electric ones for 3D prints and designs, and haven't tries that since - might not be able to get the same perfect results with mechanical ones.
My wife has a calculator that is solar powered--unfortunately, the light requirement to reasonably use the calculator is lower than the light requirement to run it.
