... Great Price ISO9001 and ISO14001 Certified 7 Inch LED Touch Monitor 7-inch Touch Screen LCD Monitor ... :160°Vertical:160°Contrase ratio350:1Video input format(analog) RGBConnectorVGA for video signalUSB for touchFrequency30~80KHz/60 ... ,+,POWER,-,MENUbrightness,contrast ratio,auto adjustment,phase position,clock,Languages,function,Install,resetTouch response time2msCertificateISO9001, ROHSWarranty1 year ...