The Gemini Alarm system is manufactured by one of the markets leading brands and is used by some of the worlds leading Automotive brands such as VW, McLaren & Toyota and many more! The system works with older or newer vehicles equipped with can bus technology. This system is pre-installed to work with Fiat Ducato Euro V vehicle, but will work with hundreds of different vehicles in the market, including all of the commercial based vehicles that you would expect i.e Fiat Ducato, Peugeot Boxer, Citroen Relay, Mercedes Sprinter, Ford Transit, VW T5, Renault Master and many more.