

Infrared, self reducing distance meter by Wild Heerbrugg and Sercel. Branded as 'Distomat'.
Product details: Wild Heerbrugg DI3S | Wild Heerbrugg | EDM | Survey | Material: Aluminium
This DI3S was a further development of the DI3 which is very similar but less sophisticated in that the DI3S has a keypad rather than 'throw' switches for setting the angles to convert from slant range to horizontal or vertical distance.
More information / other collections
Data sheet
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