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K9-Alert 3-Zone Barking Dog Alarm Kit

One K9-Alert receiver, three wireless motion sensors and a remote control for homes, shops or sheds with several likely approach points.

$179.85 AUD 1 package + 2 extra sensors · free AU shipping
Open checkout · $179.85 AUD Compare 2 zones

or 4 interest-free payments of $44.96 with Afterpay — Zip also available

K9-Alert three-zone kit with one receiver, three wireless motion sensors and remote control
What's included

Three motion points feeding the same barking receiver.

Use one sensor at the main entrance, one at the back or side approach, and one at a garage, shed, hallway or shop storage area.

  • K9-Alert Package$99.95 AUD
  • + Two extra wireless sensors$79.90 AUD
  • 3-zone kit total$179.85 AUD · ships free

Checkout opens with one package and two extra sensors selected.

Diagram showing one K9-Alert receiver connecting wirelessly to sensors around a property
One receiver can pair with up to eight sensors; this package includes three.
Good fit

Choose this kit when one sound point can cover three approaches.

It suits a house with front, back and garage approaches, or a small business with a front door, rear access and stock area.

Best for

  • ✓Three entry points around one property
  • ✓Garages, sheds, side gates and hallways
  • ✓Buyers who want one receiver and a wider sensor net

Choose another option if

  • ×You need separate barking receivers in multiple buildings
  • ×You only need one or two watched points
  • ×You already own a receiver and only need standalone add-on sensors
Placement

Where the three sensors go.

Three sensors only buy you three zones if they watch genuinely different approaches. Each covers roughly 0-7m across a sector of about 110 degrees, so overlapping two of them on the same path gains nothing and doubles the triggers you hear.

Zone 1 — the main approach

The front entry or the path leading to it. Aimed across the path, the barking starts while someone is still on the way in.

Zone 2 — the unwatched side

A side gate, garage side door or back entry. On most properties this is the approach that decides whether someone continues or leaves.

Zone 3 — what you are actually protecting

The shed door, carport, storeroom or rear boundary — the place the tools, bikes or stock sit. On a shop this is usually the rear entry rather than the shopfront.

The receiver — one sound point for all three

All three sensors trigger the same receiver, so site it where the barking is audible from outside each zone you care about. If the three zones are too far apart for one sound point to cover, separate kits suit the layout better than one receiver.

Before you order

What multi-zone buyers ask.

Can one receiver handle all three sensors?

Yes. All three pair to the single receiver in the kit, and one receiver supports up to 8 sensors in total. Whichever sensor detects movement, the same receiver sounds the alert.

Will I know which of the three zones triggered?

No, and with three zones it matters more. The receiver plays the same alert whichever sensor fires, so it tells you something moved somewhere across your three zones. If you need to know which, use a kit per zone so each has its own receiver in a different room.

How far can the sensors sit from the receiver?

The manual quotes 200m wireless reception. That figure is for a clear line of sight — brick walls, a metal roller door or a detached building between sensor and receiver will cut it back, sometimes sharply. Keep every sensor on the same property as the receiver and test each one before you mount it permanently.

Do the extra zones need Wi-Fi, an app or a subscription?

No. Each sensor pairs directly with the receiver, so nothing in the kit touches your router, your phone or a monthly plan. That is also why it keeps working during an internet or NBN outage.

How are the sensors powered?

Each sensor runs on 3 x AAA batteries or USB power, and the receiver on 4 x AA or USB. Battery power is what makes the extra zones practical: a side gate or shed door rarely has a spare power point, and the receiver can warn you when its own voltage drops.

Is three sensors overkill for a suburban house?

Often, yes. If two of your three approaches funnel through the same path, a second sensor there adds triggers rather than coverage, and the 2-zone kit is the better buy. Three zones earn their keep when the approaches are genuinely separate — front, side gate and a shed or carport, for example. You can always add the third sensor later for $39.95 AUD.

Is the 3-zone kit a full alarm system?

No. It is a motion-triggered barking deterrent covering three approaches. It is not monitored, it does not call anyone or notify your phone, and it does not replace locks, lighting or a monitored panel. Treat it as the deterrent layer that reacts before someone reaches a door.

Can I split the sensors between two buildings?

Only if both buildings sit within wireless reception of the one receiver and you can actually hear that receiver from both. A house-and-shed setup usually works; a house plus a separate granny flat usually does not, because nobody in the flat hears the receiver in the house. Separate kits are the honest answer for that layout.

Compare setups

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