Specification Alarm : Visual Brand : Visionären BulletPoint1 : Designed for vision testing at 20 foot distance BulletPoint2 : Non-reflecting, matte finish eye charts BulletPoint3 : Eye chart measures 22 x 11 in. BulletPoint4 : Multiple Applications - The red and green color bars on the Snellen chart are perfect for an easy and helpful color vision test. Perfect for optometrists, eye doctors, med students, offices, schools, and daily family members' vision tests BulletPoint5 : Eye Occluder and Hand Pointer: The plastic lightweight eye occluder features an occluder that is shaped to cover either eye during an eye examination. They help users to test vision more precisely Color : As Shown ControllerType : Remote Control ControlMethod : remote ExternallyAssignedProductIdentifier1 : 0632016061296 ExternallyAssignedProductIdentifier2 : 632016061296 FormFactor : Portable GemType : ABS ImageContrastRatio : 2000:1 IncludedComponents : Remote Control ItemName : Illiterate Landolt "E" Chart with Red and Green Bar 20 Feet Size 22 x 11 Inch's ItemPackageDimensions_Height : 33 centimeters ItemPackageDimensions_Length : 6.8 centimeters ItemPackageDimensions_Width : 7 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : therapeutic-eye-charts Manufacturer : KSIPL Material : ABS MaximumThrowDistance : 21.3 feet MetalType : ABS ModelNumber : 421L6E11FP51U9H MountingType : Wall Mount NumberOfItems : 1 PartNumber : 220058 PowerSourceType : PowerSource ProductDescription : The Astigmatic / Illiterate Letter E Visual Acuity Chart measures 11" wide x 24" long and is designed to be read at a distance of 20 feet. This Astigmatic/E Chart has a rating of direct: 20/200 to 20/10 (lines also noted in meters). The 180 degree astigmatic clock at the top of the chart is useful in screening for astigmatism. This classic letter eye chart is made of extra strong, non-reflecting, matte finish cardboard, with a brass eyelet for wall mounting. Red and green bars not only serve as a patient reference point during acuity testing, but also hint as to a patient's color perception. ProductSiteLaunchDate : 2014-11-10T05:02:15.583Z Size : 22 x 11 Style : 2pcs Snellen and Rosenbaum Pocket Eye Chart with tools SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 Wattage : 25 watts