security alarms home
74. There are some specialized sensors and video cameras that weren’t common in the past and window and door contact
switches have gotten a lot smaller, but the basics are the same: a control panel or console, magnetic contact switches, motion sensors, a siren. The new systems may also be connected to central monitoring stations, as do many old style security systems. The big difference, however, is the degree of interactivity. New software platforms, such as alarm. com and iControl allow you to send commands, program home systems, view surveillance video, and receive alerts
on a smart phone or computer—whether you’re at home or away.