Blackbox Security | fire & security

0141 812 0999



Dual Com provides dual-path signalling via the GPRS network and telephone line to transmit signals.

Having two signalling paths means that there will always be a back up path in the event of an accidental or deliberate fault on either.

For more information on Dual Com, please visit:



  • Dual-path signalling
  • Signals via any telephone network
  • Signals via GPRS network
  • Insurer and Police approved


  • Your engineers are a credit to your company.

    By Cameron McMurdo - Clarkston  
  • I have used Black Box's services in both commercial and domestic contexts over a period of 15 years.

    By Jim Stewart, Lawprint & Stationary Limited  
  • Thank your team for the prompt and professional service.

    By Mr Toner – Houston  

View all Testimonials