You should be sure to discuss what other options may be of benefit to ensure your system runs properly. These may include:
- backup battery
- local siren
- two way voice module
Alarm systems are available in hardwire or wireless. Hardwire systems simply mean that all the sensors are connected to the CPU by electrical wire. A wireless system uses transmitters and receivers to communicate via radio frequency between the sensors and the CPU. (there are no wires involved) Reliable and proven wireless technology does exist. Wireless systems can be used in areas where running wires is difficult or impossible.
They can also be used when people simply do not wish to drill holes and run wires in their premise. They are also common when installing a full perimeter system. (discussed later) Wireless equipment is more expensive due to the transmitters necessary with each sensor. However, installation costs are much less since no wires have to run to the sensors.