There are two main types of intruder alarms or burglar alarm systems:
When the intruder alarm sensor is triggered (by sound, vibration, or a change of temperature, such as that caused by somebody moving in front of a sensor) the sensor will send a signal to the alarm control panel. The alarm control panel will then activate an internal and/or external audible and visual alarm.
If the intruder alarm installed is the type that can send a signal to a remote alarm receiving centre (ARC) it will do so and the ARC will carry out your instructions to inform a range of people, such as a professional keyholding service, you, or another keyholder. Once the ARC has received a confirmation signal from the alarm system the ARC will inform the police if that is what you have arranged for.
- The engineer will walk test the various sensors to make sure they are working correctly, and within the coverage set out for them
- The engineer will show you how to use the system and explain how it works
- You should read the instructions you are given and ensure that any maintenance log is kept in an easy to find place – usually near the power supply cabinet, or the intruder alarm control panel
- Ensure that your family members/neighbours/friends you trust know how to operate the system (keyholders and contacts being dialled from the alarm control panel)