Product Name: Polarized Visual Acuity Chart for Vision Tester Model NO.: LCD-236 Group: All Certification: CE, FDA, ISO13485 Type: Vision Chart Classification: Imaging Diagnostic Equipment Charts: 26 Kinds Trademark: New Vision Transport Package: Standard Export Package Specification: CE, ISO Origin: China HS Code: 90185000 Product Description Visual Acuity Test ChartCE and FDA approvedCharts 26 kindsChart change speed less than 0.2 seconds, remote controlMasking function No mask, horizontal line mask, vertical line mask, single letter maskFilter Function Red/ Green FiltersSpecificationsLCD Display23.6" LCDMax Contrast ratio1000:1Resolution1920*1080Screen brightness350cd/m2Projection distance2.0m to 6m, 0.5 stepCharts26 kindsChart change speedless than 0.2 seconds, remote controlMasking functionNo mask, horizontal line mask, vertical line mask, single letter maskFilter FunctionRed/ Green FiltersNet Weight5 kgsPower SupplyAC 100-240V 50/60Hz 80W