Sigma S34 CAT 2-1 Upgrade Alarm

Sigma S34 CAT 2-1 Upgrade Alarm


To convert immobilised vehicles to Thatcham CAT1


Upgrade alarm system, with new radio keys, providing perimeter and ultrasonic interior protection

  • Security Features

    • 2 x single button radio keys (water and shock resistant)
    • Perimeter protection circuit for boot and bonnet (negative input)
    • Perimeter protection circuit for doors (positive or negative input)
    • Closed loop protection circuit (looped wire to protect accessories)
    • Ignition detection circuit
    • Ultrasonic interior protection
    • Single immobilisation circuit (18 amp continuous/30 amp max)
    • Manual arm, using the radio key
    • Auto re-arm can be programmed to re-arm the system
    • A Key theft protection feature can be turned on
    • Last trigger identification via the dashboard LED
    • The total trigger count memory for each individual circuit
    • Additional plug-in single stage sensor socket (optional)
    • Additional plug-in sensor socket and siren pre-warn(optional)
    • Secure data linked, self powered siren included
  • Convenience Features

    • Full central door locking/unlocking control
    • Armed output (negative 200mA max)
    • Additional siren/pager output (negative 200mA max)
    • Total closure output
    • Total open/boot release output
    • Interior lamp illumination output (negative 200mA max)
    • Headlamp illumination output (negative 200mA max)
    • Secure ignition PIN override
    • Secure PIN override using the keypad
    • Silent arm and disarm (audible bleeps can be programmed back on)
    • The last circuit to trigger can be excluded using the keypad
    • The vehicle’s battery voltage can be checked using the keypad
    • The sensors are excludable using the keypad, ignition or remotely with the optional two button radio key




    • Thatcham Category 2 to 1 upgrade alarm system
    • Supplied with 2 x single button radio keys, self powered siren
    • The system has full CDL control
    • Single immobilisation circuit
    • Key theft protection facility – only with optional keypad
    • Auxiliary siren, armed accessory, total closure
    • Interior lamp illumination, headlamp illumination
    • 2-stage unlock and boot release 
    • Sophisticated programming and diagnostic facility