The DS-2CE16D7T-IT-2-8MM from Hikvision is a 1080P HD-AHD WDR EXIR Outdoor Bullet Camera, 2.8mm Lens. It offers high definition (HD) analog video at 1080p resolution over existing coaxial cables. True 120 db WDR (Wide Dynamic Range) provides exceptional image quality in challenging lighting conditions. Hikvision’s proprietary EXIR technology offers extended IR range of up to 66 feet (20 meters). Smart IR automatically varies the IR output with the camera’s zoom factor for well exposed images. Smart Detection functions include intrusion detection, line crossing detection, region entrance detection, region exiting detection, audio exception detection, benefitting users with great improvement in security efficiency and, more importantly, with key events and objects being recorded for further forensic needs.