Night Watch Security 720p Analog HD (AHD) Series cameras, compatible with Night Owl HD Analog Series DVRs. These add-on cameras come equipped with an advanced 720p sensor with 100 degree viewing angles, 100 ft. of Night Vision, an Indoor/Outdoor sturdy housing, auto IR cut filter, low-lux sensor, vandal-proof bracket. 720p Indoor/Outdoor HD Wired Bullet Cameras 100 ft. of Night Vision 100° Wide Angle Viewing Compatible with Night Owl DVRs: DVR-AHD7, DVR-HDA7, DVR-HDA10, DVR-AHD10, DVR-X3, DVR-HDA30, DVR-THD30, DVR-THD50, DVR-THD80