4 Channel USB Port DVR

• 4 channels video input in one card, the maximum display/recording rate is 25 fps under PAL format, and 30 fps under NTSC format • 4 screen display modes are available • Multi alarm triggering method: sensor, motion, video loss, and HDD space shortage • Support schedule recording mode, recycling recording method available • MPEG4 video compression format. 5 level recording quality options available, and the recording frame rate range from 1 to 30 fps adjustable for each channel • Support multi-channel playback, searching by time/date and recording events, images can be zoom/capture/save/print/backup • Support remote surveillance and PTZ control through web browser • support dynamic domain name • Remote playback function • Configurable auto reboot function for preventing PC deadlock • Support Auto-mail, Emap • Mobile phone surveillance