... 4. Measuring Syste: TESA Models:SP-CMM 544CNC, SP-CMM 654CNC, SP-CMM 866CNC, SP-CMM 1066CNC, SP-CMM 1086CNC, SP-CMM 1286CNCCoordinate Measuring Machines* Surface ... all the three axes, system resolution up to 0.078um; Installation method with one end fixed and the other end freely ... SysytemTESA Environmental Requirements: Temperature (20±2),Humidity 55%-65% SP-CMM 654CNC Coordinate Measuring Machine