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30 years of measuring tools from Bosch: DUS 20 digital ultrasonic range finder ‒ predecessor of modern range finders

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30 years of measuring tools from Bosch: DUS 20 digital ultrasonic range finder ‒ predecessor of modern range finders

Bosch launched the first measuring tools on the market 30 years ago ‒ a pioneering feat. The DUS 20 ultrasonic range finder had a very long range of 20 meters at that time. Its aim was to make it easier to quickly determine room dimensions and use them to calculate the required amount of material – entirely without a folding rule or a measuring tape. Bosch thus laid the foundation for the development of many measuring tools for measuring, detecting, and leveling, and continuously improved their technological base. Whereas the measuring accuracy of the DUS 20 ultrasonic range finder was, for example, just 5 cm at 10 m, it is now ± 1.5 mm with modern tools such as the GLM 50-27 CG Professional laser measure.

Reproduction for press purposes free of charge with credit “Picture: Bosch”

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