Poor mans lathe DRO's

[Christophe Mineau]

but when it gives me erratic readings while I am using it due to a low battery or something else I usually fold it before thinking

Hi Franck, I'm sure you will be happy with that :
https://www.woodgears.ca/caliper/index.html

I have three digital calipers, the first keeps reliable, but like CBags, eats batteries like nothing. Why don't they feature an auto off on these calipers ?
The two others, very cheap, although a very similar build, started to give erratic measures, and random resets.

I ended making a research on the Internet and found that article from Mathias (the Great).
It is incredibly working !
And now, my best caliper is one of these cheap calipers, fixed like so.

Since I started having erratic measures, I purchased a dial caliper, which is, for the same precision, far more repeatable, but with this one, I very often make millimeters mistake. So, now, when turning something precise, I tend to use the digital one when approaching less than 1 mm to the target, and the final mm, I measure it with the dial caliper.

Christophe