Product Name: RS230, RS230p China Optometry Equipments LED Vision Chart Model NO.: RS230 RS230P Trademark: RS Transport Package: Carton Specification: CE FDA Origin: China HS Code: 90185000 Product Description LED vision chart(RS230 without polarize function )( RS230P with polarize function ,)Features:Polarized chart for binocular test23-inch high contrast and bright displaySmooth and quiet operationWireless Remote controlWide range of test typesPrecise distance adjustmentEasy mountingRandom test sequenceSpecifications:Display :23"LED(color)High resolution monitorBrightness :250 cd/m²Chart versions: E,C ABC, 123,Child, Special version chartChart acuity :6/3-6/150 20/10-20/500 0.04-2.0Distance :2.0~7.0mPower supply:Imput :AC110-220V AC+/-10%,50/60HzPower consumption :≤36WDimension :531mm(W)x 394mm(H)X121mm(D)Weight :3.8KG(Net weight)Remote :IRBatteries for remote control :3AE charts, C charts, Letter Charts, Number Charts, ChildrenCharts, Color blindness Charts ETDRS,Mirror display function , there is Arab and Russian letters tooAll the models