A motion sensor (passive-infrared or PIR) detects move-
ment within a specific area by sensing the infrared energy
emitted from a body as it moves across the sensor's field of
view. When this motion is detected, the sensor transmits an
alarm signal to the control panel.
Use this motion sensor...
Depends on the DVR. CCTV Audio on going to be hard positions as several manufacturers have shy ed left from that feature due to monitoring laws. Most of DVR support video output, usually composite video output would fit the bill. Usually labelled to call spot monitor output.
There are lots of brands in ceiling speaker - but honestly they can have different sounds - and it's hard for someone else to tell you what's best.
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Home Automation System, Home Music System, Home Security System
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