He had seen a clear strategy for fitting a niche product into a global framework. Following the Kyoto agreement on world pollution, the UK Government introduced an energy conservation act.
Control systems are available for large corporate offices and hotels.
But there's nothing for smaller units except the clock timer, which was invented in 1934 and has remained practically unchanged since. No-one has taken advantage of the microchip in this field. Marshall's solution is the Remcon Zone Controller, which links temperature sensors monitoring up to 16 devices with a computerised control unit. It keeps watch on radiators, water boilers, and outside lighting in the home, while in business premises it can also be applied to ventilation and air-conditioning. A pilot installation for one restaurant chain yielded a 1500 saving for an investment of around 10,000.