... : Optional size:15" 17" 19" 22" 32”,37”,42”,52” etc Touch screen:SAW or infared touchscreen or resistive ... mm*lens transmission : 90%- 92%*Orientation precision: < 2mm0.080 inch*Single-point touch Life expectancy : more than 50,000,000 ... LG or SUMSUNGSize: 15" 17" 19" 22" 32”,37”,42”,52” etc Aspect ratio: 4:3/16:9For 15,17inch ... us for more information. Interactive kiosk/ AD player/ digital signage