HN Environmental Development was founded in April 1996 by Hans-Jørgen Nielsen, who has more than twenty years of experience in combustion technology and emission measurement. From the start, the company's main activities were: Consultant assignments. Supervision and commissioning of new plants (waste incineration, bio- and power plant boilers and air preheaters. Flame monitoring sales and service. Emission measurement sales and service. Development and production of flow meters in cooperation with P erception S ensor and I nstrumentation (PSI). Subsequently, HN Environmental Development, in collaboration with PSI, has developed Machine Vision systems for inspection and quality control of products and manufacturing processes in industry.