Douglas Metric Protractor Weather Station Weather Meters providing clear and reliable detection

providing clear and reliable detection

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Douglas Metric Protractor Weather Station Weather Meters providing clear and reliable detectionDouglas Metric Protractor Combined protractor and parallel rule. Metric version, 125mm square. Supplied in reusable cardboard sleeve. The Douglas protractor is designed to assist in laying a course or bearing, reading a bearing, finding departure or latitude between two positions, finding a magnetic course, and fixing graduations in 1 increments. In addition, a fi" x fi" grid is printed on the centre section of this protractor.