... compatibility 22" open frame monitor Technical parameters ModelRXZG-OT2209structureMetal frame,open-touchscreen,Plastic front-frame waterproof touchscreenDisplay type22inch ... line/ field30~80KHz/60~75HzPower supplyExternal Power Supply:100 to 240V,50 to 60HzEnvironmentTemperature:0 ... 3) DIY installationOSD controlKeys-presses:AUTO,+,POWER,-,MENUfunctions:brightness,contrast ratio,auto adjustment,phase ...