1. Product
  2. Sterling Excel Transponder Immobiliser
Trusted by thousands of customers

Free fitting included UK mainland only

2 year warranty included

24/7 expert support team available

Made and Monitored in the UK

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Secure your vehicle with

Sterling Excel Transponder Immobiliser

Thatcham Approved ⓘ

What Is Thatcham Approved?

Thatcham devices are alarms, immobilisers and other vehicle security devices that are assessed by Thatcham Research. They give these devices a Thatcham Security Certification after an assessment of their features and functions.

The Thatcham certification provides reassurance around the functionality, design and performance of aftermarket security devices.


One of the main reasons people get a Thatcham approved device is to lower the cost of their insurance.
The higher the level of security your vehicle has, the harder it will be to steal. This means that your car will be safer, and your premiums cheaper.

A factory-fitted Thatcham-approved device from alarm, immobiliser or tracker makes your car more secure and this is reflected in cheaper insurance premiums.

Want to learn more?

Visit the Thatcham Certified website to learn more about Thatcham approval

Introducing the Sterling Excel Security System – your ultimate solution for safeguarding your vehicle against the most sophisticated thieves of today. Unlike relying solely on in-built vehicle security systems that might expose vulnerabilities, this advanced system operates independently, providing an unparalleled level of protection.

Designed for ease and simplicity, the Sterling Excel system empowers you with top-notch security without the need for specialized knowledge to operate. At the heart of this innovation lies a micro-processor-based immobilizer that seamlessly isolates two key electrical circuits in your vehicle every time the ignition is turned off. Remarkably, the unit’s quiescent current draw remains impressively low, consuming less than 10 mA.


More features:

  • Passive Arming: Immobiliser automatically arms after a period of inactivity
  • Dash mounted LED: A dash-mounted red status LED, serving as a system indicator and visual deterrent.
  • Anti-scan technology: By utilising specialised tags, it protects against code grabbing devices.


Including VAT and Fitting

What happens next

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Your unit can be fitted at home or work, upgrading vehicle security is hassle free.

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