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Wndsn Expedition Team

2021-12-02: The 5th edition of the Quadrant Telemeter manual is now available in our store and at Amazon either perfect bound or as hardcover.

Wndsn's Applied Science Lab, based in Berlin, develops and manufactures low-tech, high-utility tools and instruments with the objective of providing or enhancing "that, which can't be improvised" in low-probability, high-impact scenarios where it is most needed, yet usually unavailable or non-permissive. The resulting products are measurement, calculation, and exploration instruments informed by the motto "Ex Mensura, Scientia" -- knowledge from measurement.


Wndsn [ˈwɪndsən] provides tools and training for professionals and enthusiasts in mastering conditions where electronic measurement equipment and methods are unavailable or contraindicated.

Wndsn devises instruments that measure values in astronomical, geographical, and engineering contexts, calculate relevant results from the acquired data, and process the insights to make meaningful decisions.

Ultimately, Wndsn graphical computers are thinking tools that teach to observe and make sense of the physical world.


Wndsn creates custom-built instruments and multi-purpose tools, measurement & illumination solutions with applications in urban reconnaissance, hostile theaters, disaster areas, and outdoor exploration. Additionally, designing expedition mementos and morale patches to celebrate cross-disciplinary exploration and achievement.

Wndsn produces archival quality products that are designed with intent by combining techniques proven over centuries, bringing together the early history of science with cutting-edge, contemporary methods, resulting in iconic, timeless, high-utility designs. Wndsn morale patches are acutely designed -- no line is left to randomness, no element is mere filler. They serve as infographics, how-tos for the Wndsn tools, magic sigils, as well as functional markers.

Pursue, persist, prevail


Finding Polaris


Nomograph in action


Nomograph in action

Web Calculators

Wndsn Telemeter

Wndsn Telemeter

Wndsn High Frequency Research

The Legend


info [at] wndsn [dot] com

Observe - Evaluate - Control

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