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⚠ This is an add-on, not a standalone product. You need an existing K9-Alert receiver (from the package) for this sensor to do anything. If you're new to K9-Alert, start with the package — you can add extra sensors at checkout or any time later.
Extra sensor details

K9-Alert Wireless Motion Sensor

Add another watched entry, hallway, shed or garage corner to a compatible K9-Alert receiver. Checkout opens with the extra sensor pre-selected and the package at zero — it needs a receiver from the package to sound, so add one if you don't own a kit.

Open checkout · $38 AUD View package
K9-Alert extra wireless motion sensor
$38 AUD extra sensor For compatible K9-Alert receivers 3 x AAA battery power Up to 200m wireless reception
Expandable coverage

Add sensors where movement starts.

Use the package receiver as the main speaker, then add extra wireless sensors around windows, doors, garage or driveway positions.

Diagram showing K9-Alert sensors around a property sending wireless signals to the main speaker
K9-Alert wireless motion sensor product
Product overview

Add one more detection point.

The extra wireless motion sensor is for customers using a compatible K9-Alert receiver who want movement detection in another covered position. It is an accessory sensor, so it does not make sound without the receiver from the package.

$38 AUD inc. GST · Add through checkout · Free AU shipping when ordered with K9-Alert
More coverage

Use another sensor at a second entry, hallway, garage corner, shed or shop access point.

Same pairing logic

Works with compatible K9-Alert receivers using the same pairing approach as the package sensor.

Battery placement

Runs on 3 x AAA batteries, so the sensor can sit where movement starts.

Specifications

Accessory details at a glance.

Use these details to decide whether the extra sensor fits the extra point you want the K9-Alert receiver to watch.

Detection range 0-7m

Approximate motion detection coverage in a sector around 110 degrees.

Wireless reception Up to 200m

Sensor-to-receiver range guidance, subject to walls and local conditions.

Power 3 x AAA batteries

Battery operation supports flexible covered placement.

Compatibility K9-Alert receiver required

This accessory does not play sounds by itself.

Buying

Order an extra sensor on its own.

Press order from this page and checkout opens with the extra sensor selected and the package at 0. The sensor needs a K9-Alert receiver from the package to sound the alarm, so add a package too if you don't already own one.

  • Sensor-first checkout: extra sensor 1, package 0
  • Needs a K9-Alert receiver from the package to work
  • Already own a kit? Order sensors on their own
  • Add the package in the same checkout if you need one

Where it fits

Add the sensor at another watched point such as a side door, hallway, garage corner, shed entrance or shop rear entry.

Home Garage Shed Shop Package Order
Sensor notes

What to know before adding sensors.

Does the extra sensor include a receiver?

No. This page is for the extra wireless motion sensor only. Choose the K9-Alert package if you need the receiver, remote and first sensor.

Can I buy it with the package?

Yes. Open checkout from this page and the extra sensor is pre-selected. Increase the package quantity from 0 if you also need the receiver, remote and first sensor.

Can I add it after buying the package?

Yes. Customers who already have a compatible K9-Alert receiver can order extra sensors for additional watched points.

Can I order this without the package if I already have a kit?

Yes. If you already have a K9-Alert receiver, an extra sensor pairs to it using the same encoding logic. Email support@k9alert.com.au if you'd like a quick text walkthrough of the pairing steps for your situation.

How many sensors can I pair to one receiver?

The receiver supports multiple sensors using 256 selectable encodings. In practice, most households use 1–3 sensors covering different entry points; we don't recommend going past 4 sensors on one receiver because triggers from multiple zones blur together.

Ready to order

Add another watched point.

Open the K9-Alert checkout — the extra sensor is pre-selected and the package is at 0. The sensor needs a receiver from the package to work, so add a package if you don't already own one. Free Australian delivery.

Open checkout View the package

Free AU shipping · 30-day money-back · 1-year warranty