I need to build a few prototypes for January. The customer wants an analogue voltmeter. No need for high precision, more an indication between 3 and 20 VDC. I don't mind having to add resistors and rectifying diode. It has to be small cause there little room in the box, analogue, a bit retro looking, and current production in case the prototype is successful.
Small as in less than 5 X 5 cm (2' x 2').
I also need something easy to shop, so preferably a retail source in EU. Worldwide is OK if they ship fast.
So far I was thinking of stuff like these, but I wonder if it's possible to open them in order to fit a new scale that I would print?
Any advice about where to shop those or other ones that may fit the bill?
Axel
Small as in less than 5 X 5 cm (2' x 2').
I also need something easy to shop, so preferably a retail source in EU. Worldwide is OK if they ship fast.
So far I was thinking of stuff like these, but I wonder if it's possible to open them in order to fit a new scale that I would print?


Any advice about where to shop those or other ones that may fit the bill?
Axel