In conjunction with an HD Analog Series DVR, Night Owl’s 1080p Wired Infrared Cameras use dual sensors to eliminate the number of false alarms you receive by up to 90% Locating your recordings has just been made that much easier! With the advent of Night Owl’s Dual Sensor Technology, your HDD will now last longer and not be riddled with false recordings Want to expand and add cameras to your Night Owl system? Purchase this 2 pack of 1080p Wired Infrared Cameras and view your video in 1080p HD