Hidden immobiliser · Now for all vehicles

ONE
to stay in control

StarterStopper One. Stops thieves. Build in Alarm, Service Mode. Choose your own code. No apps, no GPS or subscription. For key and push-start vehicles. Keypad security in a single button. All in One.

Learn more · from $499 Watch the demo
AS SEEN ON: Scotty Kilmer
Worldwide delivery30-day returns2-year warranty
CONTROL UNIT
61 × 35 × 25 mm · Standby 0.1 mA
HARNESS
0.5 m · labeled wires
PUSH BUTTON
16 mm
The threat model

Modern thieves don't pick locks.

They sneak in through your back door and grab your keys. They relay your fob signal from outside your bedroom window. They plug a coder into the OBD2 port and drive away in seconds. None of it works if the starter circuit needs a code — and the cabin alarms when they try.

Sneak theft
Keys taken from inside your home while you sleep.
Relay attack
Repeats your fob signal from your bedside table.
OBD2 reprogramming
A spare key is added in under a minute.
7 in 10
AU vehicles stolen with their own keys
NMVTRC, 2021
< 60s
to start a car with an OBD reprogramming tool
Victoria Police
1 in 4
stolen vehicles are never recovered
NMVTRC
How it works

Two cuts.
A code in your head.

Hover or click each step to see what happens between turning the key and the engine actually starting.

Step 1 of 3 Step 2 of 3 Step 3 of 3 Locked Engine running
+12V START SIG FROM KEY STARTERSTOPPER LOCKED UNLOCKED — ★ STARTER SOLENOID IDLE CRANKING PUSH BUTTON OPEN
Install · 2 hours · DIY-friendly

Tape, tuck, done.

Four steps. all-black harness, full wiring diagram for your car. Most auto-electricians finish in less than 2 hours. Bring your own 12V horn/siren — any will do.

Download the manual
01

Pick your setup

Manual or automatic? Stop/Start? Pick the right diagram from the manual. Decide where to install 1–3 hidden buttons — more buttons makes the unlock sequence harder to bypass.

02

Hide the units

StarterStopper ECU and Alarm ECU live behind the dash. The two relays live in the engine bay. Smaller than a deck of cards — pick spots a thief won't reach in 60 seconds.

03

Splice the circuits

Cut the wire from the starter relay to the starter motor solenoid and splice in the StarterStopper Relay. Splice the Alarm ECU into the start signal. Wire the Alarm Relay through a 20A fuse to your horn/siren.

04

Set your sequence & test

Turn the key and press your hidden button(s) momentarily within 7 seconds. Skip the sequence and a silent countdown triggers the siren for 30 seconds. Mistype? Press the right combination and it stops.

The lineup

Pick your kit.

Three units. Same philosophy. The right one depends on what you drive, how it starts, and how loud you want it to get.

Best seller
Classic

The original. One cut, one sequence, zero gadgets.

$89
Secure checkout · Free shipping on 5+ units
Cuts the starter circuit
Petrol & Diesel vehicles
Any key-start vehicle
Compatible with Stop/Start systems
Auto re-arm
No alarm function / Service Mode
Not compatible with Hybrid / Electric vehicles / Remote Start
Set your own code? You want the One
Buy Classic View specs →
Audible
Alarm

Everything Classic does, plus an audible alarm.

$225
Secure checkout · Free shipping on 5+ units
Everything that Classic does
Audible alarm output
Auto re-arm
Not compatible with Hybrid / Electric vehicles / Remote Start
Service Mode
Set your own code? You want the One
Buy Alarm View specs →
New
One

Even MORE security! A Keypad fitted into One button + more.

$499
Secure checkout · Free shipping on 5+ units
Stops the start
Alarm
Personal code + learner mode
Service mode for workshops
Printed master code backup
Auto re-arm
Not for fully electric vehicles / Remote Start
Buy One View specs →
Worldwide shipping 30-day returns 2-year warranty
Compatibility check

Will it fit your car?

Pick your make, model and year. We'll tell you in seconds.

Will it work in your car?

Can't find your car?

What's in the box

Everything, nothing extra.

You don't need to source a single connector. Open the box, follow the diagram, install in an afternoon. Classic kit shown — Alarm adds the siren circuit (bring your own 12V horn), and the One box has its own line-up on the product page.

Control unit + relay
Smaller than a deck of cards. Lives hidden behind the dash. Alarm kits include a second pair (Alarm ECU + Alarm Relay) for the siren circuit.
Wiring harness
All-black, preset. All cables tagged for the right connection. 1A and 20A fuses included.
Hidden buttons
1–3 hidden buttons for your unlock sequence. Use the included ones or substitute any momentary 200 mA+ button — get creative.
Install guide
Diagrams for automatic, automatic with Stop/Start, and manual transmissions. The right diagram for your car.
Reviews & press

4.8 · 13 reviews

As featured in Williams Scotty Killmer

Stop the theft before it starts

Your car
won't start
without you.

Get a kit, set a code, sleep better. We ship world-wide and most folks finish the install in less than 2 hours.

Buy a kit · from $225 Chat on WhatsApp
Designed in Cairns, AU · Ships worldwide · 2-year warranty