This B&H Kit includes the Datacolor Spyder4PRO Display Calibration System and the Datacolor SypderCHECKR 24. The Spyder4PRO calibration sensor is a display color calibration tool well-suited for photographers and creative professionals looking to match prints to their displays. This calibration tool features a full-spectrum 7-color sensor that can accurately characterize a variety of both wide-gamut and normal displays, as well as iPads and iPhones. Add in the SpyderCHECKR 24 and you can take advantage of 24 saturated color patches, two skintone patches, and six gray ramp patches. These color patches provide professional pigment-formulated color and gray targets. Along with the included pigment patches, you can also take advantage of the highly accurate HSL correction software to further enhance your work.