(1)Dual optical path design improves repeatability accuracy dE*ab ≤ 0.03 (2) Over 30 measurement parameters and nearly 40 evaluation light sources available (3) Built-in HD camera for clear observation of the measured area (4) Use the powerful PC-based colour management system ColorExpert* (5) Calibration base and zirconium reference with a Mohs hardness of 9 to calibrate the instrument, ensuring long-term stability (6) Supports 3 measuring apertures for selection (7) Support WeChat applet, Android, iOS mobile APP,Etc Batteries 1 Lithium Ion batteries required. (included) Item Weight 9.9 pounds Manufacturer HFBTE Item model number B0FXRZP8V9