... touchscreen with built in computer 1.OEM/ODM 2.Save your time 3.competitive price ,relibale quality 4.Manufacture Dong ... most authoritative certifications in the world, including CE, ROHS, ISO9001:2008 and CQC.· Long lasting product cycle-enclosure controlled ... .744(H)×0.744(V)Brightness550cd/m2Contrast Ratio(Typ.)2000:1Viewing Angle880/880/880/880Responce time8MSField frequency50Hz,60Hz,70HzInput ...