... ELO compatibility type:17''19''22'' LCD monitor 19'' open frame LCD monitor Technical parameters ModelRXZG-OT1906structureMetal frame,open- ... frequency( line/ field30~80KHz/60~75HzPower supplyExternal Power Supply:100 to 240V,50 to 60HzEnvironmentTemperature: ... 100mm 3) DIY installationOSD controlKeys-presses:AUTO,+,POWER,-,MENUfunctions:brightness,contrast ratio,auto adjustment,phase position ...