This is the Worlds First Ruggedized Armored Variable Dispersion Infrared Laser IR PTZ camera! It is highly effective at detecting persons at great distances in pitch black conditions. The Laser IR automatically adjusts as you zoom the camera in and out.WECU offers an exclusive line of Laser infrared laser illuminator technology cameras. The variable infrared laser beam provides up to 400+ meter night time visibility in conjunction with a 36x optical imager. The camera shell is made of high strength aluminum alloy, providing impact resistance and corrosion resistance. The camera is rated up to IP 66. Special considerations in design have made this camera suitable for installation in all types of environments including mounting on vehicles.