Magnetometer 25/1-0-1 Gauss Handheld king charles III 5 card pack printed 10

5 card pack  printed 10 sides laminated with premium grade tough plastic film to ensure product is WATERPROOF has long life and resilient to damage

Edition  25 Sept 2015

This eclectic collection will not disappoint any armchair seafarer

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Magnetometer 25/1-0-1 Gauss Handheld king charles III 5 card pack printed 10POCKET MAGNETOMETERS DUAL PURPOSE, TWO COLOR SCALE makes the Model 25 Magnetometer more useful. The upper Black scale (the one more usually used) reads directly in gauss of a uniform magnetic field oriented parallel with the centerline of the instrument scale. The lower Red scale is used in determining the magnitude and direction of an unknown magnetic field by merely orienting the instrument for maximum reading. When shown in the Red scale, at such a