1.7 inch metal housing，Chinese/English OSD menu, NO Delay；
2.PWM LED control technology, IR distance is up to 120M；
3.1/3 inch Progressive Scan cmos  Sensor，18X Optical Zoom；
4.Supports coaxial transmission for video and signals control, effective distance is up to 500M;
5.Military circuit design, IP66 protection, anti-surge,anti 6000V instantaneous voltage;