Consists of a centrally located panel, where all devices wire back to that “home” panel. This type of alarm is used when sensors require the power to operate correctly (e.g. smoke detectors).
These alarms often use battery-powered transmitters (approximate 5-year life-span), which tend to be easier to install and offer protection against cable cutting.
This is a combination of both wired and wireless alarm systems. It is perfect for big properties as it has a wider area coverage.