The available Measurement Illumination Conditions for the i1Pro2 instrument are as follows:
M0 (ISO 13655-2009) Tungsten (No Filter UV included)
M1 (ISO 13655-2009) D50
M2 (ISO 13655-2009) UV excluded (UVcut)
OBC X-Rite Optical Brightener Compensation Technology
The older i1Pro only used M0 and M2.
The new i1Pro2 is a single hand-held device that accommodates multiple measurement conditions meeting current and emerging ISO standards for imaging workflows.