Weekly hire
House slabs, renovations and short jobs.
- Hub with 4G
- Photo detectors for the gate and yard
- Siren and strobe
- Hire by the week, no lock-in
Construction site security · Tasmania
Security that moves with your build.
Construction site security hire for Tasmanian builders: wireless detectors, photo-verified alarms and sirens. Set up in one visit, moved at every stage, with alarms straight to your phone and optional 24/7 monitoring.
- Wireless · no cabling
- Photo-verified alarms
- Optional 24/7 monitoring
- Tasmanian owned
Site armed · 6 devices online
- 22:41:07Zone 3 · yard · motion
- 22:41:09Photo series received · 3 frames
- 22:41:10Siren and strobe on
- 22:41:14Photo verified · person on site
- 22:41:16Response dispatched · owner notified
- 22:44:52Zone 3 clear · site re-armed
$70m+ a yearis the Master Builders estimate of what metal theft costs the building industry.
$30,000+ in toolswas taken in one break-in at a Burnie construction site, Tasmania Police reported.
Inside, not just aroundCopper, tools and fittings sit in containers and half-built floors, where a tower on the boundary can't see.
How it works
From break-in to response, in seconds.
Alarm-grade detection, with a photo behind every alarm. Fewer false call-outs, faster action on the real ones.
- 01
Deploy
We install the hub and wireless detectors in one visit. No trenching, no cabling, nothing fixed to the build.
- 02
Detect
Outdoor detectors cover up to 15 m across 90°, ignore animals up to 80 cm tall, and raise an alert if someone covers or sprays the lens.
- 03
Verify
The detector that triggered sends a photo series, the first frame within about 9 seconds, so you, or the monitoring centre if you add it, can see who is there before anyone is called out.
- 04
Respond
A siren of up to 113 dB and a strobe go off, you get the alert with photos, and the agreed response is dispatched.
Every stage of the build
The risk moves. So does the kit.
Slab and frame
Copper, timber and steel arrive. Detectors move onto the frame and over the materials drop, where most theft happens at this stage.
Example layout · your kit is designed around your site
The DFNDR X tower · in development
A self-powered tower that watches, verifies and sounds off.
For open ground, compounds and laydown yards, the DFNDR X tower puts the same Ajax system on a solar-powered mast: no mains, no trenching, no internet to arrange. Link it to wireless detectors inside the building and one hub covers the whole site.
- 1Four Ajax MotionCam Outdoor detectorsOne facing each way, each covering up to 15 m across 90°. A built-in camera takes a photo series the moment one triggers, and anti-masking raises an alert if a lens is covered or sprayed.
- 2Ajax StreetSiren DoubleDeckUp to 113 dB with a strobe, powered from the tower battery.
- 3Ajax TurretCam (optional)Live and recorded video with night vision to 50 m, switched on by an alarm to save battery.
- 4Solar panelKeeps the battery charged, so there is no generator or site power to arrange.
- 5Hub and battery boxAn Ajax Hub 2 Plus on Ajax's 12–24 V power module with dual-SIM 4G, a lithium (LiFePO4) battery, and a sensor that raises an alarm if the box is opened, struck or tilted.
- 6Two-section mastLifts the detectors and siren above head height and out of reach.
- 7Ballasted baseStands on the ground with no digging or fixing, and moves around the site as the build changes.
Ajax and the product names above are trademarks of Ajax Systems. Specifications from ajax.systems, November 2026. Detection range and battery life depend on site conditions and settings.
One system, one app
More than an alarm on a pole.
Every kit is built from the same wireless platform, so theft, fire, flooding and a worker in trouble all show up in one place.
Intrusion detection
Outdoor detectors cover up to 15 m; indoor and curtain detectors protect containers, site offices and open floors.
Photo-verified alarms
Each detector takes a photo series the moment it triggers, so a person is seen before anyone is called.
Live video
Add cameras where you want to look in, such as the gate, the yard or a level being fitted out.
Sirens and strobes
Outdoor sirens up to 113 dB with a strobe, sounding the moment an alarm is raised.
Smoke and heat
Detectors for site sheds, lunch rooms and hot-works areas, on the same system.
Personal duress
A panic button for anyone working alone on site after hours.
Leak and flood
Water sensors for fit-out, so a burst line doesn't ruin new floors overnight.
Arm by app, fob or schedule
The site arms itself when the last person leaves, or from your phone.
Compare
Towers watch the fence. DFNDR X goes inside.
Use it on its own, or alongside a tower or patrol you already have. Most sites need eyes on the boundary and detection where the stock is.
| Feature | Solar CCTV tower | Security guard | |
|---|---|---|---|
| Covers inside containers and part-built floors | Yes. Wireless detectors go wherever the stock is. | Mainly the perimeter and yard, in line of sight of the mast. | Only where the guard is at the time. |
| Moves as the build changes | Repositioned at each stage of the build. | The trailer is towed and re-sited. | Patrol route changes with the site. |
| Cabling on site | None. Detectors run on batteries. | None. Solar and 4G. | None. |
| How an alarm is checked | Photo series from the detector, checked by you or by monitoring. | AI video analytics, usually monitored. | Eyes on site. |
| Fire, smoke and duress | Same system, same app. | Not usually offered. | The guard can respond. |
| Local technicians | Tasmanian, based in Ulverstone. | Mostly mainland fleets. | Providers in Hobart and Launceston. |
| Indicative cost | Weekly hire, quoted for your site. | One national provider advertises from $90 a week per camera. | Static guards run $45–75 an hour in Melbourne. |
Competitor figures are taken from public websites in November 2026 and vary by provider, site and term.
Hire
Weekly hire. No lock-in.
Installation, repositioning between stages and removal at handover are part of the hire. Alarms come straight to your phone, and 24/7 monitoring is available as an add-on.
Quoted per site
Commercial, multi-residential and civil works.
- Kit designed around your site plan
- Moved at every stage
- DFNDR X towers for open ground
- Cameras, smoke, heat and duress as needed
- Event log for insurance and handover
Account rates
Builders running several jobs at once.
- Kits move from job to job
- All your sites in one app
- Monthly invoicing
- One contact at Securatech
Built by Securatech
Local technicians, not a mainland fleet.
DFNDR X is designed, installed and serviced by Securatech, a Tasmanian-owned electronic security company that has looked after commercial, government, education and aged care sites since 2017. When something needs moving or fixing, a local technician comes out, not a courier. DFNDR X runs on Ajax Systems hardware, one of the platforms our technicians already install and support.
- Since 2017
- 25+ years in the industry
- Statewide from Ulverstone
Where we work
Construction site security across Tasmania.
Securatech technicians install, move and service DFNDR X kits statewide from our base in Ulverstone. We protect house slabs and renovations, multi-residential and commercial builds, civil works, shutdowns, and vacant sites waiting on the next stage.
Hobart and the south
Hobart, Glenorchy, Clarence, Kingston, Brighton, Sorell and the Huon Valley.
Launceston and the north
Launceston, the Tamar Valley, Longford, Deloraine and Scottsdale.
North-West Coast
Devonport, Ulverstone, Burnie, Wynyard, Latrobe and Smithton.
FAQ
Questions from site managers.
How quickly can you set a site up?
Most sites are set up in a single visit. Detectors mount on fences, frames, containers and walls with no cabling, and a DFNDR X tower stands on its own base with no digging, so we work around your trades rather than holding them up.
Do we need power or internet on site?
No. A DFNDR X tower runs on solar power and a lithium battery, and the hub sends alarms over 4G with two SIM cards, so it can switch networks if one drops. The hub has its own backup battery, and the wireless detectors run on their own batteries for up to three years.
Who responds when the alarm goes off?
Every alarm, with its photos, goes straight to your phone in the Ajax app, so you can monitor the site yourself. Add 24/7 monitoring and each alarm also goes to a monitoring centre, where operators check the photos before acting. Either way, you choose the response: call your site manager, send a patrol, or call police for a confirmed break-in.
Can you move the kit as the build changes?
Yes. That is the point of the system. We reposition detectors and towers at each stage, from earthworks to handover, and the moves are part of the hire.
What is the minimum hire?
We hire by the week, with no lock-in contract. Short hires suit house slabs, shutdowns and the gap between stages. Longer projects go on a project or builder account.
What equipment does DFNDR X use?
Ajax Systems wireless security equipment, certified to EN 50131 Grade 2. The radio link between the hub and its detectors is encrypted, and the hub reports any attempt to jam it. Securatech already installs and supports Ajax across Tasmania.
Do you cover all of Tasmania?
We are based in Ulverstone and work statewide, from the North-West Coast to Launceston and Hobart.
How much does construction site security cost?
DFNDR X is hired by the week and priced for each site. The price depends on how many detectors, sirens and towers the site needs, how long the build runs, and whether you add 24/7 monitoring. Send us the site details and we reply within one business day with a layout and a weekly price.
Can it protect site containers, tools and materials?
Yes. Wireless detectors go inside shipping containers, site sheds and part-built floors, where copper, tools and fittings are kept, and each one sends a photo series the moment it is triggered.
Can we see what is happening ourselves?
Yes. The app on iOS and Android, and desktop software for Windows and macOS, show every event, photo and arming change. You can arm and disarm from anywhere.
Get a site quote
Tell us about the site. We'll design the kit.
We reply within one business day with a layout and a weekly price. A site plan helps but isn't needed.