Milestones

1938


Founding of the company Dr. GRAW Messgeräte in Berlin, Germany by the physicist Dr. Josef Graw










1942

Dr. Graw developed and patented the key component of the radiosonde, the Graw morse encoding cylinder; by this invention, the measurement precision was greatly improved

1948


Relocation of the company to Nuremberg, Germany

1948

Development of the radiosondes H50 and M60 for German Weather Service
M60 pushed GRAW-sondes to an international leading position in terms of accuracy and robustness

1976


Mr. Horst Schmidmer (owner of the NORIS Group GmbH) took over all shares of Dr. Graw

1976


License production of radiosonde RSG for German Weather Service and E076 for German Army

1977


Introduction of the radiosondes E084 and E085 for German Army

1978


Start of completely computer-controlled production and calibration

1986


Introduction of the mini radiosonde system TDFS / KS-87 for environmental monitoring in lower heights

1990


Start of Surface Mounted Technology (SMT) to increase productivity

1990


Development of the first purely digital radiosonde DFM-90 and groundstation GK-90

1995


Development of the first GPS radiosonde DFM-90 DGPS

1995


Development of the compact groundstation GK-90C with GPS module

1998


Development of the optimised GPS radiosonde DFM-97

2003


Company is renamed "GRAW Radiosondes GmbH & Co. KG"

2004


Development starts on the GPS radiosonde DFM-06

2006


Market launch of the radiosonde DFM-06

2008


Market launch of groundstation GS-E

2010


Market launch of the radiosonde DFM-09

2012


Market launch of the resilient and fully splash-proof groundstation GS-B for extreme conditions

2015


Market launch of the groundstation GS-U

2016


Market launch of the pilotsonde PS-15

2017


New building established for expansion of production, quality management and warehouse logistics