Magnetometer 25/1-0-1 Gauss Handheld 324 Recording your sea service allows

Recording your sea service allows you to make the best use of your time on vessels

usually in conjunction with other observations

Papua New Guinea - North Coast - Vitiaz Strait to Karkar Island 1:300 000

Edition 21 August 2020

Magnetometer 25/1-0-1 Gauss Handheld 324 Recording your sea service allowsPOCKET 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