https://en.wikipedia.org/wiki/SecurityDIY Security for Sale Online in South Africa | DIY Geek
Instead of requiring a professional installer, these home security systems are sent to you with all the parts you need—such as entry sensors, keypads, fobs, and sirens—and because most all the sensors are wireless, they’re generally very easy to set up.
The main and most essential reason to invest in a security system is to deter crime in your home. According to the Electronic Security Association’s “Home Safety Fast Facts” report, 9 out of 10 burglars said that if they encountered an alarm or home security system, they would not attack the home.
DIY Security for Sale Online in South Africa | DIY Geek