Sigma alarms

Sigma Thatcham category 1 alarm and immobiliser

Sigma Thatcham category 2 to 1 alarm upgrade

Sigma has a long history of producing and supplying a number of the world's leading vehicle manufacturers with cutting edge vehicle security systems.
Sigma new S Series range continues this tradition, providing the latest technology, functionality and legendary reliability, to deliver the most advanced vehicle security system money can buy.

The S Series is designed to work independently as a full remote control system linked to the vehicle's central door locking, or to interface with the manufacturer's pre-installed remote locking system. All models are manufactured to the highest European certification standards, including Thatcham approval for the appropriate insurance-approved systems.