Product model : XS-402D Video Standard : PAL:50fields/second NTSC:60fields/second Digital Memory : PAL:720576 NTSC:720480 Video Input : 1.0Vp-p 75 BNC VCR Input : 1.0Vp-p 75Input VCR Output : 1.0Vp-p 75output Alarm Input : 4CHDC+5VorTTL,Active High/Low input, each camera mates a connector input : Alarm Output : 1 ch programmable as normally open or normally close Alarm Duration : 0-99seconds Alarm Mode : Video Loss Alarm ,Outer trigger alarm, Motion detection alarm Display Mode : Full screen,Zoom,2pictures,4pictures,8pictures, PIP, Auto-sequence Control : Button & Remote Control(choose and buy) Power Supply : DC12V 1A Working Temperature : -30~60. Size: 220mm(W),10mm(D),50mm(H). Weigh : 1kg.