AGA EDM (Geodimeter Model 6)

The Geodimeter Model 6, introduced in 1964, was a transistorized Electronic Distance Meter with coaxially mounted transmitter and receiving optics. It had a range of 1-2 miles in daylight, and 10 miles in darkness, and a standard accuracy of 5 mm + 1mm/km. Without case or tripod, it weighed a mere 35 pounds. Advertisements showed it being carried by a woman, with text stating "Your assistant can look like this." Equipped with a tungsten lamp and various accessories, it cost about $10,000 and could be powered with a 12-volt car battery. A mercury vapor lamp for the Model 6 cost some $2,500 more, and required a special generator. Michael Baker Jr., Inc., purchased this example in 1966, and donated it to the Smithsonian Institution in 1997.
Ref: AGA, Geodimeter Model 6A Operating Manual.
Currently not on view
Object Name
overall: 21 in x 14 in x 8 1/2 in; 53.34 cm x 35.56 cm x 21.59 cm
place made
Sverige: Stockholm, Stockholm
ID Number
accession number
catalog number
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Surveying and Geodesy
Data Source
National Museum of American History, Kenneth E. Behring Center


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