CNET23 天
I Set Up My Own ADT Home Security System. Here's How It Works
Commentary: I didn't need a technician to come to my home to set up ADT's smart security system. Here's what it includes and how I did my own DIY installation. Kimanzi Constable CNET Voices ...
Engineering360 News8 年
Security System Services Information
Security system services install, maintain, and monitor security equipment such as CCTV systems, video cameras, building monitors, entry alarms, metal detectors, and movement and occupancy sensors.