500z
* 480 display/240 recording
* Enhanced Mpeg-2 video CODEC
* Versatile Screen Partition up to 16Ch
* Real time image surveillance
* Save/Print still image
* Motion detection search available
* Watermark to prevent data abuse
* Triplex mode-Playback, recording network access simultaneously
* Wathcdog and auto rebooting
* Biderectional audio support