This H.264 2MP HD Alarm Detector Sensor supports HD-TVi, HD-CVI, and AHD technologies. The 2.1MP CMOS camera lens ensures fine resolution and high-fidelity shooting. Besides that its designed into a compact size, it is convenient and portable to carry. In addition, it features elegant appearance, easy operation and practicability. 2 Yr warranty ensures It will never let you down!