Intercom systems allow you to communicate with anyone at your front door from the security provided by being a safe distance away. Communication through this intercom can provide you with an additional level of security when you must control a gate latch with a buzzer as well.
Motions sensors use infrared technology that detects fluctuations in surrounding temperatures caused by the introduction of body heat. The key is that motion sensors operate most effectively when located away from areas that naturally experience rapid fluctuations in temperature, which means situating it away from heater vents and windows heated by sunlight.
Some security alarm systems set off an interior siren when the alarm has been activated. A third level of protection is provided with some units with an associated strobe lighting device that facilitates discouragement against continued intrusion into the area. The strobe lights can help alert the situation to neighbors who may either be unable to hear the sirens or passively ignore it.
An alarm system that features a degree of portability is another option. These small-scale alarm systems operate on battery power and combine the motion sensor with an alarm. The units are small enough to comfortably fit on a coffee table or high on a bookshelf.
The ability to control all aspects of an alarm system when you are away from the house can be an essential option for those who need to be away from home for long periods. Alarm systems are capable of being remotely operated by a phone or computer.
A duress code is a useful addition if the occasion ever arises where an intruder is able to force you to disable the system. The duress code works by inputting a special code that will disarm the system while at the same time sending a silent signal to those monitoring your system.
Those who live alone and desire the security of an alarm system should consider the addition of a monitoring alert that sends out an OK signal. This feature works by sending an alert to the monitoring company if a certain amount of time goes by without the interior sensors sending out a signal indicating normal traffic inside the house. When the OK signal is received, the monitors will alert neighbors, families or friends to the situation so they can check on you if necessary.