Acoem ATD technology detects both the muzzle blast and the ballistic sound wave of a bullet in motion, allowing detection and ...

but ADT+ is clearer than past versions of ADT have been. A system hub and single sensor start at $270, while a beginner's kit with three sensors and a motion detector starts at $350, and so on.

ADT is a residential and business security ... which can then trigger an alarm. Motion detectors use infrared technology to ...

ADT has just launched a promotion, running until May 7th, that you might want to take advantage of if you've been thinking ...