
The moment a door opens, you know.
Advanced magnetic detection that watches your doors and windows around the clock — wired to nothing.
Instant magnetic detection
Advanced magnetic sensor technology triggers the moment a door or window is opened — no delay, no blind spots.
Real-time call & SMS alerts
The sensor signals its host unit, which can notify you by phone call or SMS the instant something opens — wherever you are.
Completely wireless
No cables, no drilling, no electrician. Nothing for an intruder to cut, and nothing to trip over.
Peel, stick, protected
Installs in minutes with the included double-sided adhesive. Alignment scale lines make perfect placement easy.
Day and night protection
Once it's on, it's on — monitoring your entry points 24/7 so you can rest easy at home or away.
Backed by Sentinel
Australian owned, with local support, a 1-year warranty and 30-day returns on every order.
Three steps to a safer home.
Stick it on
Attach the alarm to your door or window frame using the included double-sided adhesive — no tools needed.
Line it up
Place the magnet opposite the sensor and align it with the scale lines for optimal detection.
You're protected
From the moment it's aligned, any opening is detected instantly — and you can be alerted in real time.
Cover every way in.
Small enough to go anywhere a door or window opens.
Front & back doors
Know the second anyone comes through an entry.
Windows
Guard the quiet ways in — including ground-floor and bedroom windows.
Sheds & garages
Protect tools, bikes and gear stored away from the house.
Caravans & rentals
Adhesive install means no drilling — perfect where you can't make holes.
Specifications
| Type | Wireless magnetic door & window sensor |
|---|---|
| Detection | Instant — triggers the moment the contact opens |
| Alerts | Signals the host unit; real-time notification by call or SMS |
| Installation | Double-sided adhesive with alignment scale lines — no tools |
| In the box | 1 × Detector Alarm + door magnet |
| Warranty | 1 year |
Frequently asked questions
How hard is it to install?
Genuinely easy. Peel the backing off the included double-sided adhesive, stick the alarm to your door or window frame, and place the magnet opposite it using the scale lines to align. Most people are done in under five minutes, with no tools and no drilling.
How do the call and SMS alerts work?
When the door or window opens, the sensor instantly signals its host unit, which can then notify you by phone call or SMS in real time — so you know what's happening even when you're not home.
Can I use it somewhere I'm not allowed to drill — like a rental or caravan?
Yes — that's one of its best tricks. The adhesive mount means no holes, no damage, and no arguments with the landlord. It peels off cleanly when you move.
Can I cover more than one door or window?
Absolutely — many customers put one on every entry point. Each alarm comes as a complete sensor-and-magnet set, so just add one to your order for each door or window you want covered.
What if it's not right for me?
You're covered by our 30-day return policy and a 1-year warranty, with free shipping on every order.
Don't compromise on safety.
Dependable, wireless protection for every door and window — installed in minutes, watching around the clock.
Add to cartFree shipping · 30-day returns · 1-year warranty