Analog CCTV cameras has been around for decades, and currently being replaced by HD Analog CCTV Cameras due to the latter's higher quality at similar or lower cost of purchase. Prior to the era of HD Analog CCTV, picture quality was counted from the TV Lines (TVL). The higher the better.
720 TVL Horizontal Resolution
2.8 ~ 12mm vari-focal lens
40m IR distance
Smart IR, high dynamic range
Superior video image output and ultra low light illumination
Wide operating temperature range