Very good sensor for calibration of Eizo monitors. This is identical to the Spyder 4 of Datacolor, it is but unlike this software at no. The EX2 is therefore suitable only for hardware calibration of Eizo monitors the "ColorEdge" series. But also cheaper than the Spyder 4 yes accompanies the software for normal calibration software, which is also suitable for all monitors. Nevertheless, for owners of Eizo monitor from the "ColorEdge" series is a good value for their price, as cheaper by about 50 euros as the Spyder 4pro.