Features: 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 your measurement. The operation could be easier and more convenient. Measurement screen: Easy to use with recognizable icons; The JD-2000 series provide a user-friendly graphical interface for an immediate understanding. Progressive measurement: A graph helps the operator to improve accuracy and sped in the measurement of near and far vision. Automatic recognition of single and progress lens High Speed UV measurement: Just hold the lens through the sensor, the display will easily indicate the UV measurement by the progress bar. Built-in thermal printer: Quack data print with built-in printer. Easy to reload printing paper. High Speed UV measurement: Just hold the lens through the sensor, the display will easily indicate the UV measurement by the progress bar. Built-in thermal printer: Quack data print with built-in printer. Easy to reload printing paper.