History
12/27/1961

Mr Rolf H. Hübner establishes GfG Gesellschaft für Gerätebau mbH

GfG 1961

1961

The Dortmund Superior Board of Mines grants GfG authorization for the "Methane tester K95" gas detector. The K95 methane tester is the first electronic gas detector used in coal mining.
The G61 and G61 TR methane detectors developed by GfG are built in small quantities and used in coal mining. The Minister Stein coal mine has about 400 GfG instruments in use.
1962
The legendary EVAMETER G70 and G70P gas detectors receive authorization and approval to be used in the mining industry. Until 1967 more than 15,000 EVAMETERS are used at the Deutschen Steinkohle AG.
1964
Delivery of GfG gas detectors is put into effect through the NMS (National Mine Service, Pittsburgh). During the next 10 years more than 80,000 GfG gas detectors are delivered to the American mining industry.
1966
GfG gas detectors are delivered to mining industries in Hungary, Poland, Yugoslavia, Czechoslovakia, and the USSR. GfG begins to focus on increasing sales in Germany.

GfG becomes a specialist in gas detection, supporting Ruhrgas (a large energy supplier) in a conversion to natural gas.

Fixed gas systems, including those for wind speed measurement, are installed for mining industries in Hungary, Yugoslavia, and Poland.
1968
With Concor Mining, SA GfG establishes a subsidiary company in South Africa, GfG (Pty) Ltd. The strongly increasing need for safety in the South African mining industry offers GfG big expansion possibilities.
1978
Mr. Hans Jörg Hübner becomes the new managing director.

Mr. Hübner expands the market to many areas of the industry and community. The need for safety in areas with hazardous gas increases. Statutes and regulations become stricter and require more safety.

1979
New instruments and variations on existing instruments are designed and produced for specific markets under the management of Mr. Hans Jörg Hübner. In just a few years GfG has expanded to over 100 employees.
GfG establishes a subsidiary company in Switzerland, GfG AG. The Swiss company develops products for water measurement and quickly becomes the market leader, offering equipment for the refrigeration industry that utilizes ion-selective measurement.
1991
GfG purchases an American Company by the name of Dynamation, thereby establishing a new subsidiary in the USA. Through the purchase of Dynamation GfG obtains a larger market share for its gas monitoring instruments in the US.
1997
At this point GfG operates worldwide. By establishing subsidiaries in the USA, Singapore, Switzerland, and South Africa, GfG maintains a worldwide sales network.
2000
The American subsidiary changes its name from Dynamation to its current trading name: GfG Instrumentation, Inc. The American subsidiary changes its name from the original name Dynamation to the current trading name GfG Instrumentation Inc.
2001