... 100meters distance-1/4 Sony CCD-Waterproof dome cameraFeature:1, 27X zoom camera, color to B/W , with IR-CUT switch, ... reason;5, Design special camera, IR lamp sub-depot separate system, no sphere case glisten, fogging malady.6, Constant voltage ... Power, IR effective Distance 100 Meters.8, Optional temperature control system, suitable for working in high or low temperature environment. Science ...