Alarm
In stock · Ships worldwide

Alarm

The hidden immobiliser with a siren. It cuts your start circuit and sounds the alarm the instant a thief tries to drive off. No app, no subscription, no fob to carry.

$225
Secure checkout · Free worldwide shipping
Add to your kit
Not sure it'll fit? Check your car in 30 seconds
As seen on: Scotty Kilmer
Free worldwide shipping 30-day returns 2-year warranty Real human support
Watch

See it in 48 seconds.

Features

What it does.

No app. No GPS. No subscription.
No app. No GPS. No subscription.

Works fully offline — no tracking, no accounts, no ongoing fees.

Relay-attack protection
Relay-attack protection

Stops common key-signal relay theft from starting the vehicle.

CAN-bus hardened
CAN-bus hardened

Designed to resist common CAN-bus start and bypass attempts.

Starter-circuit cut
Starter-circuit cut

Disables the starter circuit so the engine can’t crank.

Alarm output
Alarm output

Triggers an audible alarm after an unauthorized start attempt.

Specifications

The boring
numbers.

All weights, currents, and tolerances measured at the bench. Anything not listed? contact@starterstopper.com.

Ingress
IP54 (dust + splash)
Warranty
2-year limited
Cuts
Starter solenoid signal · fuel pump or ECM injector signal
Operating temp
-40 °C to +85 °C
Standby current
0
Compatibility
Any 12 V or 24 V key-start vehicle (petrol or diesel)
Dimensions
61 x 35 x 25
Weight
100g
Classic vs. Alarm vs. One

Which kit
is right?

See the One
Classic
AU$89
Alarm
AU$225
One
AU$499
Hides behind dash
Cuts starter circuit
Cuts a fuel circuit
Audible alarm output
Push-to-start vehicle support
Service mode (workshop bypass)
No app · no GPS · no fees
Feedback

Customer reviews

  • 5 stars: 4 (80%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 1 (20%)
  • 1 star: 0 (0%)
J
Jonathan Estacio

Product comes with all the hardware needed for installation, instructions are easy to understand. Installation process is easy to average, will just depend on the set-up you want. And most of all, gives me peace of mind that my car will stay where I last parked it, unless it gets towed

A
Aralev

I've had a Starterstopper for 2 years now and highly recommend it. Easy to install easy to operate and no anxiety about my car being stolen even if a thief has the keys. The beauty of it is I don't even have to remember to activate it when I leave the car, so easy and so affordable.

J
Jeffery

Can't wait to try it out but I live the idea to prevent theft with all the other things in my car

A
Andrew Nicholls

I looked at the wiring diagrams and decided not to install this product. To my mind, it could be easily defeated.

Instead, I purchased an IGLA + Alarm system.

None of these security devices is perfect. The vehicle can still be towed or put onto a tilt tray truck. These devices are designed to stop someone from starting your car and driving it away.

A
Aralev

Since installing StarterStopper I have no anxiety about my car being stolen, even if the keys are taken, I have had absolutely no issues and it's a set and forget system. Jump in the car enter the code. Jump out of the car and the system is reset automatically, love it!! Totally recommend this product.

FAQ

Five things
before you buy.

Anything else, email contact@starterstopper.com — a real person reads it.

Will it work on my car?

Any vehicle that uses a physical key to start. Push-to-start car? You want StarterStopper One.

What if I forget my code?

Hold the program button on the control unit for 30 seconds with the battery disconnected — the unit factory-resets. Set a new code; the car still starts normally.

Does it drain the battery?

About 0.6 mA when armed — roughly the same as your factory clock. Vehicles parked for 6+ weeks during testing did not flatten their battery.

Can a thief just find it and bypass it?

They have to find it (smaller than a deck of cards), recognise it, and short two specific terminals — by which point they've spent more time than they would picking another car.

Can I uninstall it later?

Yes. Pull the harness, reconnect the original wires (we ship butt connectors for exactly this), done. No permanent modifications.