From the outside in

External detection should form the first line of defence for both residential and commercial sites.

In this article, Gwen Curran explains why security should start outside the property, before an intruder reaches doors, windows or internal spaces. Early detection gives security teams more time to respond, helps reduce damage and supports a more layered approach to protection.

The piece also highlights the challenge of nuisance alarms. Environmental factors, small animals, poor sensor selection and incorrect installation all affect performance. Reliable external sensors help filter genuine threats from non-security events, giving users greater confidence in their alarm system.

By combining external detection with video verification, lighting and audible warnings, sites gain a stronger, more proactive security system. This layered approach helps reduce missed alarms, improves response and protects people, property and assets before an intrusion escalates.