the cheapest 4channel MJPEG DVR with complete functions in the world
* MJPEG compression
* Triplex operation
* Multiple record modes: motion detection / timer / sensor triggered / remote
* Motion detection: area selection & sensitivity adjustment for each camera
* PTZ control via RS485
* PIP, zoom, auto switch display function
* Configurable record picture quality, resolution & frame rate
* System self-recovery after power reconnected
* Network: remote control DVR
* Password protection
* IR remote control included
* Audio I/O
* VGA video output