... ,400 MHz~2,483 MHz 4CH Modulation Mode FM USB 2.0 Operating Temperature 0°C~ +50°C / +32°F~ +122°F Storage Temperature -20°C ... ~ +60°C / -4°F ~ +140°F Operating Humidity 85%RH CAMERA ... CMOS Horizontal Definition 380TV Line Angular Field of View 45° (f=6mm) Minimum Illumination 0 Lux Scanning Frequency(H) 15.625KHz ...