Supplier: Features: 4 channels video input the maximum display/recording rate is 25 fps under pal format and 30fps 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 zoomed/captured/saved/printed/backup. Support remote surveillance and ptz control through web browser. Remote playback function configurable auto reboot and watchdog function for preventing pc deadlock. Auto mail notification-sends you a picture of the movement captured by camera mobile phone remote surveillance system requirements: os supported windows 2000/windows xp