... other toxic substances, more energy saving and environmental protection.System Control ModeContrast, brightness , sharpness , color saturation , hue , signal switch ... COperating Temperature0ºC~50ºCOperating Humidity10~90%Shell MaterialFull Metal Jacket, Static-Free,Magnetic Reactance,Anti-Strong Current ... backlight CCTV Monitor,can be used in outdoor or medical,WIFI or 3G is optional