Henning Koppel He began designing clocks in 1978 and subsequently expanded his work to include weather instruments and other practical objects. The weather stations from the long-established Scandinavian company Georg Jensen were designed in 1980. Designer Henning Koppel was the epitome of postwar Danish design. He was the leading figure in a movement that combined functionality with high-quality design. The Henning Koppel barometer from Georg Jensen combines internal precision with an elegant exterior. The Koppel barometer measures air pressure (970 to 1060 hPa or mbar) with impressive precision. A thermometer and a hygrometer are also available from the Henning Koppel weather station series.