Why a Three‑Layer Security Strategy Beats Cameras Alone for Brisbane Homes & Businesses
Every week at ProCCTV Brisbane we’re asked the same questions:
“Do cameras really stop break‑ins?”
“What’s the most cost‑effective way to secure my property?”
The truth is that surveillance alone rarely scares off criminals. Effective protection comes from a three‑layer security plan tailored to local conditions in South‑East Queensland.
Layer 1 – External Deterrence (Make Them Think Twice)
Goal: Stop the intruder before they touch your doors or windows.
Ear‑piercing outdoor sirens are the single most powerful deterrent. A 110 dB+ blast right above a front door shocks burglars and alerts neighbours instantly.
Strobe or flood lights help, but without a siren they don’t draw enough attention.
Wireless perimeter sensors such as Ajax Outdoor Detectors give reliable, tamper‑proof threat detection around fences, paths and driveways. They ignore pets and weather, slashing false alarms.
Avoid “active‑deterrent” cameras with small built‑in sirens. Limited PoE power means they’re far too quiet to be taken seriously.
Local tip: We install sirens on each venerable aspect of the property for maximum deterrance
Layer 2 – Physical Barriers (Slow Them Down)
If deterrence fails or is non-existant, solid physical security should delay entry long enough so attention can be drawn to the intruder or deters them all together
Do the basics, ensure doors and windows are locked - this typically keeps the opportunists out
Dead‑bolts, quality window locks and security screens (e.g., Crimsafe) add precious minutes.
In commercial premises, reinforce doors, install roller shutters and high‑security bollards
Remember: physical measures don’t make a site unbreakable; they make it less appealing than the place next door.
Layer 3 – Internal Alarm (Final Line of Defence)
Once a burglar forces entry, the aim is to drive them back out fast.
Indoor screamers over 110 dB make it unbearable to remain inside.
Motion and door contacts trigger sirens the moment someone crosses a threshold.
Professional 24/7 monitoring or smartphone alerts let you verify events from anywhere in Brisbane.
But What About Cameras?
Cameras are critical for evidence and post‑incident review—not deterrence. Pair them with Layers 1 & 3:
Cameras provide you insight as to what is happening around your property, great for monitoring pets, deliveries and reviewing incidents
High‑resolution CCTV is valuable post incident for providing evidence to assist investigations for Queensland Police and your insurance provider
In commercial settings we sometimes add advanced analytics (loiter detection, Number Plate Recognition, etc) to activate external sirens or voice warnings, but this costs far more than wireless perimeter alarm systems.
Why We Recommend Ajax for Residential & SME Clients
Wireless, pet‑immune sensors deploy quickly and cost effectively around Queensland properties
Indoor & outdoor sirens hit up to 113 dB—loud enough to be heard streets away.
End‑to‑end encryption, anti‑jamming, and up to seven years’ battery life keep maintenance low.
Seamless integration with our ProCCTV monitoring centre for visual threat verification to reduce response times
Next Steps for Brisbane Property Owners
Book a free security walkthrough – we’ll map your perimeter and highlight weak points.
Get a layered protection plan – priced for your home or business, not a cookie‑cutter package.
Sleep easy knowing your property has the siren power, physical resilience, and monitoring coverage to keep opportunistic thieves at bay.
Ready to upgrade from cameras‑only to a true three‑layer defence? Call ProCCTV on (07) 5235 4444 or request a quote online today.