03:00
02:56
00:457" color and touch screen, high accuracy , with pd ph pcl ruler , blue light transmittance measure
00:299" color and touch screen, 3D tracking, full automatic ,
00:453D tracking , touch screen,
00:21auto tracking, veritical tracking, motorized chinrest , one key lock , with keratometer , 8" color and touch screen
00:29Full automatic auto refractometer , top quality in China
00:44Full automatic , small size , with built-in computer