Type of compass Silva 1-2-3 System Mirror sighting compass

Clinometer

Declination adjustment 

Magnifying lens 

Patented red/black N/S lines in capsule

Illumination 4 hours after activation in light

Impact resistance 30g in XYZ directions and free fall from 1.5 m height into gravel

Settling time from 90° angle to complete rest 5 sec

Settling time from 90° angle within ± 3° 2.7 sec

Sighting System Mirror sighting

Silicon friction feet

UTM position plotting scales (Romer scales) 1:25k, 1:50k

Accuracy ± 1° (17.8 mils)

Altitude use 5000m @-15 °C

Resolution degrees / mils 2 / 50

Gradation 6400° / 360°

Temperature operating range -40 to 60 °C

Material: Acrylic/Acetal

Scales mm, inch

Water resistance IP68 – (more than 100 m)

Size 108 x 63 x 20 mm

Weight 88g