1：Motion  & PIR detection, increases the reliability；
2：One alarm siren speaker connection port
3:SONY 1/3" CCD camera. higher Resolutions;
4:Built-in SD card slot, support up to 2GB memory capacity;
5:Automatic Photo/AVI video recording;
6:Recording video&jpeg  with time & date stamptly；
7：Records events successively, overriding old data when the Memory Card is full