Fullhan is the leading image signal processor solution provider in Mainland China, the company is headquartered in Shangshai, few people know this company though it’s one of image signal processor providers to some famous security camera companies including Dahua and Hikvision.

We intend to provide you a complete guide to 720p/1080p AHD DVRs.  When selecting the AHD DVRs, it should be easy just like selecting an analog DVR for CCTV cameras. However, it turns out AHD product selection is far more complicated.  The number of channels, the recording resolution, maximum fps are three most im...

RS-232 is a communications standard for serial communications between devices. In CCTV, this can be communication between a controller and a surveillance camera. The RS-232 standard allows for the connection of two devices through a serial link, and is the protocol used for serial connections in computers. RS-485 al...

Only applied to the scene where the targets are sparse and there is rarely any covering between targets, such as the perimeter without any guard. It will trigger alarm when the target passes through the warning line according to the set movement direction. It takes some time from the target appears to the target is ...