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The Sigma S32 Thatcham & Insurance Approved alarm system is suitable for cars that are factory fitted with remote central locking, particularly those vehicles with deadlocks.

Upon leaving your vehicle and locking the car doors the Sigma S32 Thatcham approved alarm system will fully arm.

Likewise it will fully disarm when you unlock the doors from the remote upon your return.

 Security Features

  • Thatcham Category 2 to 1 Upgrade Alarm System
  • Door, Bonnet and Boot Protection
  • Door Open Warning
  • Ultrasonic Interior Protection
  • Immobilisation circuit for utilisation of Key Theft Protection

Supplied and professionally installed by Vehicle Defence for just £299.


The Sigma S34 Thatcham approved 2-1 upgrade alarm system operates using its own remotes.

It is designed for installation to vehicles manufactured after 1994, when it became compulsory for all new vehicles to be fitted with Thatcham approved transponder immobilisers from the factory (known as category two immobilisers).

Fitting a Thatcham approved alarm in conjunction with this type of immobiliser increase the overall rating to a Thatcham Category 1 system, as recognised by all insurance companies.

The main Security Features of the Sigma S34 Car Alarm: 

  • Thatcham 2 to 1 Upgrade
  • Thatcham and Insurance Approved
  • Central Locking Control (where fitted)
  • Battery Back Up Siren
  • Tri Colour Dashboard Mounted LED
  • Door, Bonnet and Boot Protection
  • Intelligent Ultrasonic Sensors for interior protection
  • Automatic Re-Arm and Lock
  • 2 x Remote Controls Supplied
  • Door Open Bleeps (Vehicle Applicable)

Personal Safety Features

  • Automatic Re-arm and Lock
  • Safety Lock and Unlock from ignition status
  • Panic facility operated from the remote control

Supplied and professionally installed by Vehicle Defence for just £319



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