How combining Alarm and CCTV Installations work best for you
- Consider combining Alarm and CCTV installation as part of your overall security requirements.
- National Operations Network provides state of the art Alarm and access control installations.
- The ideal solution for your access control, swipe cards, door sensors, alarms and line supervision needs.
- The ability to call out, National Operations Network can also provide alarm monitoring.
Door sensors are an essential component of your home security system: they let you know when someone is entering your home. These devices are made up of two parts, which form a circuit when they’re kept parallel to each other. When someone opens the door, the two parts separate and break the circuit, which triggers the control panel to sound an alarm.
A security alarm is a system designed to detect intrusion – unauthorized entry – into your building or other area. 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 on your property.
Line supervision is the means for monitoring the communication link between a sensor and the alarm control center. A means where a known current is present on the line to the central station. Cutting or shorting the line changes this current, which results in an alarm.