The Cyber Chart is maintenance free and offers numerous advantages over conventional chart projectors and other available visual acuity systems. The Cyber Chart can be easily mounted on the wall or on a table stand. The high contrast and bright displays allows tests to be performed in any ambient light condition, enhancing comfort for both patient and clinician. Multiple Feed Distance Model: It has 3 different select-able distances a ranging from 2.5 M to 6 M, Standard Optotypes and more than 150 charts in a single unit.Customer can choose any of the distances as per requirement. Languages - MULTIPLE REGIONAL, ENGLISH with more than 30 educational charts. LCD type :20" LED Display Luminance :200 c d/m 2 Remote Control : Infrared Working distance :2.5 m ~ 6 m Connections : Audio, USB Power Requirements : 110-230 VAC, 50/60Hz Power Consumption : 35W Unit Weight :3 kg Gross weight :3.8 kg Unit Dimensions : 47.7 x 28.4 x 2.4 CM Package Dimensions : 58.5 x 42 x 14.0 CM *STANDARD TEST: SNELLEN, LOG MAR, ISHIHARA, MADDOX, WORTH FOUR DOTS, ASTIGMATISM, CONTRAST SENSITIVITY, DUOCHROME, CROSS CYLINDER. *OPTOTYPES: SLOAN LETTERS, NUMBERS, TUMBLING E, LANDOLT RINGS, FIGURES FOR CHILDREN, REGIONAL LANGUAGES. *DISPLAY MODES: SINGLE CHARACTER, SINGLE LINE, SINGLE COLUMN, BLACK IN WHITE, MULTI LINE.