Navigation is a life-long process and if you want to take your navigation skills to the next level and learn more about advanced techniques - then have a look here.
GPS SCALE
Many compasses feature map-measuring in mm, inches, scales of 1:25k, 1:40k 1:50k along with GPS scales to combine your compass with other equipment.
ILLUMINATION
The illumination parts on the compass housing enables for you to use the compass also in the dark.
