We are deeply saddened by the passing of our company founder Hannes W. Keller. We think back fondly on his visionary thinking, his sharp intellect and his humorous, rebellious manner. His open, direct nature will also remain forever in our memories.

Hannes W. Keller, called HWK, was a man with a strong personality. He knew what he wanted, went through walls with his head and liked to enter unknown territory.

In collaboration with A.R. Zias, he invented the integrated silicon measuring cell. To continue the development according to his own ideas, he founded today's company KELLER Pressure in 1974.

Social commitment was close to HWK's heart. It was important to him to give something back to "his" town and he supported many social, sporting and cultural organisations.

In the obituary, we look back on his impressive life and thank Mr Keller for everything.