Huanyu 18.5" (47CM) LCD Optical Digital Visual Acuity Chart 18.5-inch Eye Charts Inteligent Vision Chart Optometry Tester Projector AC100-240V

About the product: Features: Super thin and light design, high definition scheme, The professional digital picture processing technology, fast switching, easy to operate. Measuring accuracy with the distance from 1.0m to 7.0m and the smallest step 0.1m. Offering single display function, which includes eight rows and three lines charts. Offering fully charts, which includes 300 charts around: International C word, International E word, Children, Figures, Astigmatism, Binocular balance and so on. Sitting type installation & Wall-hung type installation both available, which enable the installation convenient and maintenance easy. Specifications: DISPLAY TYPE: 18.5 INCH TFT LCD MMEASURING DISTANCE: 1-7M(Adjustable: 0.1m) STANDARD TEST PATTERN: Letters/ Children/ Number/ Tumbling E/ Landolt C/ Red/Green/ Red- green Blindness/ Contrastsensitivity/ Worth Fordot/ Minutestereo/ Schober/ Cross/ Fixation/ Crossgrid/ Beehive/ Astigmatic Clock Dia MASKING: Horizontal line/ Vertical line/ Singleletter SIZE:18.5" MAINBODA: (L)438mm*(H)274mm*(THICKNESS)45mm POWER SOURCE: AC100-240V±10% 50/60Hz POWER CONSUMPTION: 20W

• Compared with the traditional LCD eye chart, this eye chart adds a contrast sensitivity test and amblyopia optotypes.
• Convenient for test: With the maximum 3 lines and 8 rows of optotypes showing on screen.
• Display Fuctions: Line display List display Signal display Red & green color display Full screen display
• Numerous Option of Optotypes: international C optotypes, E optotypes, letter optotypes, children optotypes, numeric optotypes, astigmatic optotypes, cross optotypes, binocular balance optotypes, color blindness optotypes, and so on
• Accurate and exact: effective distance is 1-7m, can be adjust to the minimum distance(lm) for crowded area.