I bought the Cheapest 1um Mill DRO on Aliexpress

I bought the cheapest 1um resolution DRO I could find on Aliexpress for my mill.
https://www.aliexpress.com/item/4001153705541.html

I paid approx £176 (US$243, EUR204 - at time of checking).
These appear to have a 1um resolution, but once i have fitted these to my mill, I will make some more accurate measurements. I would imagine the accuracy is more like 5um - stay tuned to find out!

Edited (badly) with a combination of openshot and DaVinci resolve.

Видео I bought the Cheapest 1um Mill DRO on Aliexpress канала ollysworkshop