You can use any instrument with WinDAS, including your own biological eyes if you trusted them. As far as I know, the eye one display 2 is compatible with argyll and HCFR (both of which work in windows, not sure about linux or mac). Keep in mind that the instrument probably can't read as low luminances as the i1 display 3, so you might not want to lower the G2 too much when setting black level.I have an Xrite eye one display 2, part no 35.54.30 Rev A
Is that possible to use with windas? If so, with what operating system?