Almost 30 years ago with the release of the HP Graphing Calculator Series, Hewlett-Packard placed unique computing power in the hands of engineers and surveyors.

Allen Associates linked the magic of the 48 to the Survey 48 Software Suite and introduced it to users across the subcontinent. Compatibility was maintained within the Series, and like Survey 48, Survey 49 and 50 became a worthy companion on many a survey project.

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