1.12-inch usb touch screen lcd monitor 2.digital advertising monitor 3. cold rolled steel 4. CE & FCC 5. ... water-proof 12-inch usb touch screen lcd monitor for digital advertising LCD screendimension17"Aspect ratio4:3brightness300cd/m2contrast ratio450:1color16.7 ... easy plug-and playApplication fields : various kinds of fields, eary to operate, such as POS payment, restaurant, medicine, query system, ...