... built by solid aluminum with sun-visor for both indoor and outdoor use. with Total frame rate ... PAL, 120 fps in NTSC.Illumination0 lux (with IR LEDS on)Display resolution:640 X 480, ... 12 channel monitoring.Multi screen monitoring, 1,4,9,16,25, 36 split Screen available, support rotate ... High speed network transmission.Superior image clarity ,built with 9-bit ADCsEasy to installation and use GUI ( ...