We have implemented many customized solutions in cooperation which are based on our technology. We use examples of solutions for oil, gas, steel-making and chemical enterprises in order to demonstrate the most common custom solutions. In addition to the industries mentioned these types of solutions are also applied in other sectors. For instance the solution described for chemical companies is very often used for warning and sound distribution systems in sports arenas where ammonia, a hazardous material, is used or in meat processing companies or freezing plants that also deal with the same hazardous material.