Most alarm systems come in standard packs: a control panel, motion sensors, window vibration sensors, sirens, door and window magnets, and smoke detectors.
Systems are priced from R2 000 to as much as R20 000 for a full kit, depending on the brand.
Builders shares tips on how to install your own system…
What you need for a wireless alarm
1. Control panel
Install the control panel first. It is the centre of the system, the computer - and all other components are connected to it.
Place the main panel near a door and close to the main entrance. If you have more than one keypad, the back entrance and master bedroom are good additional places.
2. Passive sensors
These come in a variety of types, the most common being Passive Infrared (PIR) sensors, which measure body heat. Others include motion detectors.
Positioning a sensor is important: install it high and away from direct sunlight, make sure it is unobstructed, and keep it away from heaters, fireplaces, etc.
3. Door and window sensors
Door and window sensors detect intruders before they enter the house, which makes them a particularly effective deterrent. They generally involve magnetic contacts that trigger the alarm when contact is broken, or when the door or window is opened.
If you have sash windows or sliding windows, you can attach two magnetic mounts 15 centimetres apart, one in the closed position and one with the window open 15 centimetres. This will allow you to open the window slightly to allow for cooling and ventilation, and still set the alarm and receive an alert if the window is opened.
Many security systems come with wall-mounts, decals or signs. Use them. They act as a deterrent.
Test your system regularly to make sure all its components are working.
More than half of burglaries involve break-ins on the ground floor, so prioritise ground-floor security.
What about pets?
Roaming pets can trigger false alarms, but many systems include settings or options that distinguish the movements, size and body temperature patterns of pets from those of humans.
Most systems work well for animals up to 40 kilograms. The placement of passive sensors is also important to prevent false alarms caused by pets. Place the sensors high and away from furniture that pets can use to climb on and set off the alarm.
Article from property24