This is really nice. Working fine. Funny, the first look was it's small. Somehow by picture, I imagine it could be bigger but ... Before ordering, be sure in what measuring range you will going to use it. For me 25 mm will do the job.
Quick delivery (order 2020 Oct 23, received 2020 Nov 04), good package, works OK. It is realy 0.001 mm resolution and repeatability! Manual in English, so nice!!! Tips polished to perfect mirror. There is no "OFF" switch - it goes OFF automatically after 20min. Though some discrepancy in manual is obvious (see picture). But who needs this data port anyway... : - ) Anyway, recommend seller.