Security alarm is a system designed to detect intrusion – unauthorized entry – into a building or other area such as a home or school. Security alarms are used in residential, commercial, industrial, and military properties for protection against burglary (theft) or property damage, as well as personal protection against intruders. Car alarms likewise help protect vehicles and their contents. Prisons also use security systems for control of inmates.
Wired Alarm System
A wired security system relies on your landline phone connection to transmit signals to a monitoring center. While it supports basic monitoring capabilities, there is a threat of physical onsite wires being cut or destroyed, rendering the system ineffective. For this reason, cellular backup is recommended to prevent weather or other landline interference.
Unmonitored systems, also known as “local” alarms, rely on you or someone near your home to alert the authorities of an emergency. With an unmonitored system, audible and visual alarms are triggered whenever your system is tripped. Unmonitored systems are typically a less expensive option compared to monitored systems. However, unmonitored systems don’t provide the same level of protection, as they do not notify a monitoring center of your emergency for subsequent first responder dispatch. Even if the alarm sends an alert directly to your phone, you may be unable to respond if you have bad cell reception or are away from your device.