security labs sld251b refurbished 4-channel digital video recorder with lan
the sld251 dvr is the solution for applications that require one to four cameras to be recorded simultaneously . fully multiplexed each camera can be played back full screen . cameras can be viewed live in quad four per screen or full screen . built in video motion detection can be set to place the dvr in record automatically when any camera detects motion . the removable hard drive slides out to allow for archiving or expansion . in quad mode all four cameras can be viewed and recorded at 30 images per second . in mutilplexed mode mux individual cameras can be recorded at 7.5 images per second 7.5 x 4 cameras 30 . four adjustable compression levels give the user additional control over total recording time . the hard drive can be set to automatically write over the oldest video when full so that recording can be non-stop . continuous manual event and scheduled recording is available . four alarm inputs are included to automatically place the dvr in the record mode when event recording . a time and date event search allows for quick location of important video . the dvr can be viewed via the internet with a web browser . playback full screen viewing and operational controls can be accessed from any location .