Recta Scout kompass DS 40
The ideal starter mirror compass
The Recta Mirror Sighting Compass DS40 Scout is for beginners. It is a mirror compass with fixed declination correction scale. Luminous markings and bezel. Radius vectors on the cover to measure the inclines.
- Mirror compass
- Fixed declination correction scale
- Luminous markings and bezel
- Radius vectors on the cover to measure the inclines
- Scales: 1:10 000, 1:15 000
- Graduation 360º
- Dimensions: 75 x 55 x 17mm (with closed lid)
- Weight: 44g
Metal objects or power-lines in your vicinity can deviate the compass needle. Strong magnetic fields can in some circumstances even reverse the polarity. Therefore, it is important to check your compass periodically. Small bubbles in the liquid are of no importance. They may appear and disappear with changes of temperature and air pressure.
The vertical intensity and direction of earth’s magnetic field, the Inclination, influences the horizontal plane of a compass needle according to the latitude where it is used. Due to inclination, compasses must be balanced for several zones in order to keep the needle in a horizontal position.
Magnetic lines do not necessary point to geographical North. The angle between these two directions is called the declination It varies locally and over time between one country and another. With certain models, the appropriate correction can be set permanently, with simpler models, this has to be calculated or taken into account on the fixed declination scale.
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