Outdoor & Perimeter Protection with AJAX — Driveways, Fences & Large Blocks in Melbourne
Perimeter-First Security for Melbourne Properties
Outdoor & Perimeter Protection (AJAX)
Stop intruders before they reach the door. Our perimeter alarm Melbourne approach supervises fences, driveways, side paths, garages, sheds, and workshops using reliable outdoor alarm sensors and smart deterrence—tuned for Melbourne’s weather, pets, and garden layouts.
- Detect at the boundary: gates, side entries, rear lanes
- Reduce false alarms with dual-curtain logic and pet immunity
- Scale to large blocks with long-range wireless topology
- Instant deterrence via outdoor sirens with strobe feedback
- Optional visual verification and automation (lights/gates)
Why perimeter first?
Most break-ins start outdoors—testing a gate, peeking through a garage window, or hopping a fence. Detect early so sirens and alerts trigger before a door or window is targeted.
A perimeter-first plan channels intruders into supervised corridors—driveways, side paths, fence lines—so sensors observe movement from predictable angles and distances.
Schedule your free site visit now!
Call +61 406 432 691 or complete the form and we will contact you.
DualCurtain & Outdoor PIR Sensors: Accurate Boundary Detection
Narrow corridors demand narrow detection. AJAX DualCurtain places two independent “curtain” sensors (left/right) in one body to build a tight detection wall along fences, façade lines, and side paths—keeping pets, trees, and passing traffic out of the slice while focusing on human-height movement.
DualCurtain: placement tips
- Mount parallel to fence/wall, 0.8–1.2 m high
- Angle left/right curtains to form a “hallway”
- Mask gardens or neighbour driveways if visible
- Start medium sensitivity; increase only if needed
- For pet immunity, set lower beams above pet height
Best for long fence runs, side access, façade windows.
Outdoor PIR: open-area coverage
- Use wide-angle for front yards, driveways, garages
- Mount 2.2–2.5 m; avoid hot exhausts in view
- Keep direct sunrise/sunset off the lens; add shields if needed
- Mask bottom wedges if pets roam or vehicles idle
- Test straight-on, diagonal, and parallel approaches
Great for vehicles, open lawns, approach arcs.
Tuning to Melbourne conditions
Wind, hot roofs, and reflective paving can raise background noise. Start conservatively, enable anti-masking for deliberate cover attempts, and log events for a week. If a nuisance trigger repeats, adjust masking and angles rather than boosting sensitivity. The goal is a quiet perimeter that becomes loud only when it should.
Outdoor Sirens & Visual Deterrence: Make the Attempt Fail Fast
Audible + strobe deterrence
Outdoor sirens do two things perfectly: they announce the intrusion to neighbors and pressure the intruder to retreat. A bright strobe makes the alert visible even when traffic noise is high, while programmable tones and durations reduce fatigue for nearby residents.
- Mount one siren facing the street, another toward the rear yard
- Use tamper inputs and anti-masking for physical vandal attempts
- Set a shorter night-time duration to reduce nuisance impact
- Pair with lights to “flood” the approach vector during alarms
Best-practice placements
- Primary siren on street-visible façade—high enough to resist reach
- Secondary siren near yard entry—covers side path or rear lane
- Consider a mini indoor sounder at the garage interface door
When paired with perimeter sensors, alarms trigger before a door breach, making attempts short and unproductive. Visual strobe also helps first responders find the right property quickly.
Noise discipline & neighbors
Balance effectiveness with consideration. Limit maximum on-time at night, and use confirmation delay on fringe sensors to filter weather-driven motion without weakening core corridors like gates and driveways.
Our Packages
Silver Basic Package
- 1 x HUB 4G + Ethernet
- 4 x Motion Protect
- 1 x Home Siren
- 1 x Street Siren
- 2 x Space Control Key Fobs
Gold Package
- 1 x HUB 4G + Ethernet
- 1 x Keypad
- 2 x Door Protect
- 4 x Motion Protect
- 1 x Motion Cam
- 1 x Home Siren
- 1 x Street Siren
- 2 x Space Control Key Fobs
Platinum Package
- 1 x HUB 4G + Ethernet
- 1 x Keypad
- 2 x Door Protect
- 2 x Motion Protect
- 2 x Motion Cam
- 2 x Motion Cam Outdoor
- 1 x Home Siren
- 1 x Street Siren
- 2 x Space Control Key Fobs
ReX 2 Long-Range Topology: Coverage for Large Yards, Sheds & Workshops
Large allotments and detached buildings challenge signal paths. ReX 2 repeaters extend AJAX’s long-range wireless to distant fence lines, sheds, workshops, and rear lanes—keeping outdoor alarm sensors responsive even when structures or terrain block direct communication.
Topology guidance
- Place ReX 2 midway between hub and far perimeter run
- Avoid metal sheds or water tanks; use offsets to keep line of sight
- Test signal strength at each sensor with doors closed
- Use separate repeaters for rear lane vs side access if needed
- Document each hop so future upgrades remain simple
Power & resilience
- Keep ReX 2 on stable mains with backup
- Use tamper controls and lockable housings in service areas
- Monitor link-quality events; investigate trends, not one-offs
- Prefer short hops with strong margins over a single long hop
Objective: no-drama connectivity across the whole boundary.
Validation routine
- Map corridors: fence runs, gates, driveway, shed/workshop doors
- Place sensors; walk-test with typical approach speeds and angles
- Check link margins at peak interference (evening, busy road hours)
- Record a 7-day log; adjust masks or angles to silence nuisances
- Finalize with a staged alarm to verify siren audibility and strobes
🔹 Gate/Shed/Workshop Layouts, Video Cases & CTA (Request Your Plan)
Typical perimeter schemes
- Front gate & driveway: DualCurtain on fence return + wide PIR over vehicle apron; siren/strobe at street-visible façade.
- Side path to backyard: DualCurtain angled to form a corridor; mask gardens; confirm pet paths are outside beams.
- Detached garage/workshop: Outdoor PIR on vehicle approach; curtain on pedestrian door; inside mini sounder.
- Rear lane boundary: DualCurtain in staggered pair to remove gaps; ReX 2 hop if hub is front-loaded.
- Acreage corner: Staged layers—outer curtain at fence, inner PIR closer to buildings; independent alerts per zone.
Each plan balances detection geometry (angles, height, distance) with local conditions (pets, wind, traffic glare). The aim is to supervise where trespassers walk—paths and gates—while ignoring benign motion.
Short video cases
Demonstrate real approach vectors and alarm responses:
- Fence hop at dusk → DualCurtain fires → strobes + siren
- Side path scout → masked garden ignored → corridor trip alerts
- Rear lane probe → staggered curtains remove “shadow” gaps
- Garage check → PIR + inside sounder → retreat within seconds
Embed clips or before/after diagrams to show angles and masking.
Request a perimeter layout for your property
Share your suburb, notes on pets/vehicles, which sides are accessible, and any detached structures (garage, shed, workshop). We’ll propose a perimeter-first scheme with sensor types, mounting heights, and siren positions tailored to your site. No contact form here—reach out using your preferred channel.
Most homes with fences/driveways/side paths are completed in 2–4 hours. Larger blocks with rear lanes or detached sheds can take half a day depending on DualCurtain/PIR count and heights/masking.
Yes. Outdoor AJAX devices are built for rain, wind, and temperature swings. We still avoid direct sunrise/sunset into the lens and mount with shields where needed to minimise thermal glare and reflections.
We use narrow “curtain” geometry, masking zones, and conservative sensitivity. Pet-friendly angles keep lower beams above pet height; we also avoid moving foliage in-beam and exclude hot exhaust areas.
DualCurtain houses two opposite “curtain” sensors that form a tight corridor along fences, façades, and side access paths—perfect for boundary lines and gate approaches where you want precise detection.
Use ReX 2 when you have distant runs (rear lane, far corner, detached garage/workshop) or thick structures that attenuate signal. We place it mid-path to maintain strong margins instead of one long hop.
Sirens are configurable. We set day/night profiles with capped durations and use strobe emphasis after hours. Street-facing placement helps alert the right people without prolonged noise.
Yes. We create partitions (zones) so your fence lines, driveway, and gates can be armed while interiors remain disarmed—ideal for evenings or when you’re working in the garage or backyard.
The hub has backup battery power. Alerts can use Ethernet/Wi-Fi with optional cellular as a fallback, so perimeter events still notify you during outages.
Expect multi-year battery life. We recommend seasonal walk-tests, quick lens cleaning, and a yearly review of masking/zones—especially if landscaping changes or new pets/vehicles are introduced.