Adjustable LCD Display Screen: Tilt color screen provides you with clear view from any position such as sitting and standing; Sensitive touch LCD display Screen: You just touch the screen to finish measurement, the operation could be easier an d more convenient. Hartmann Sensor technology: The new generation auto lensmeter is based on Hartmann Sensor technology. Advanced simultaneous measurement of 108 points provides a faster measurement with greater accuracy and reliability. Measurement Screen: Easy to use with recognizable icons. The JD-2600A provides a user-friendly Graphical interface for an immediate Understanding. Progressive measurement: A graph helps the operator to improve Accuary and speed in the measurement Of near and far vision Built-in Thermal Printer: Quick data print with built-in printer. Easy to reload printing paper.