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SILVA Arc Jet S Left MS

$129.50 $109.50
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Product Description

SILVA Arc Jet S thumb compass - left hand, southern hemisphere model.  5 year warranty*.

The Arc Jet S is a high-performance thumb compass with the Spectra speed dial graphics on the capsule. The Spectra pattern consists of reference marks and numbers, designed to simplify navigation.

The new Silva Jet 2.0 needle has been designed to provide the perfect balance between speed and stability, and has been tested by elite orienteers throughout development. The combination of the new capsule and Jet needle give world class performance in speed and settling time, transparency and needle stability.

The baseplate has a unique design with a cut-out to provide perfect contact between thumb and map, and an attachable thumb plate for those who prefer the classic thumb grip. Simply slide it on/off to the baseplate with a simple click.

The Arc Jet S thumb compass comes with two adjustable thumb bands, one soft and one firm. The thumb bands are rubberized at the inside for optimal friction to ensure the compass stays in place and fits comfortably.

If you want to add map scales on to your compass in order to measure distances on the map, simply attach one of the included scale stickers on the baseplate. The Arc Jet S compass comes with four different scales; 1:15 k, 1:10 k, 1:7.5 k or 1:4 k.

Spectra speed dial:
The Arc Jet S has an updated version of the original Silva Spectra System that consists of reference markings and numbers on the capsule. Simply memorize the number that the needle is pointing at after completing step 2 of the Silva 1-2-3 system, and the sighting line will guide you in the right direction as long as the needle stays pointing at that number. Designed like a clock, the speed dial is easy to read and memorize and enables you to move faster and more accurately while orienteering.


  • Silva Jet 2.0 needle for unmatched needle speed and settling time.
  • Spectra speed dial graphics
  • Arc wing design for extra support and stability.
  • The baseplate design allows thumb contact with the map.
  • Attachable thumb plate. Slide it on/off to the baseplate. Two thumb bands included – soft and firm.
  • Attachable scale stickers: 1:15 k, 1:10 k, 1:7.5 k, 1:4 k.
  • Friction element for improved friction against the map.
  • Robust material that withstands tough treatment and conditions.
  • Tested and approved by Tove Alexandersson


  • Article number: 38018
  • Accuracy: ± 1° (17.8 mils)
  • Included accessories: Soft & Firm thumb bands, detachable thumb plate, 4 scale stickers
  • Magnetic zone: Magnetic south
  •  Measuring scales: 1:4000; 1:7.500; 1:10.000; 1:15.000
  • Needle: Jet 2.0 Needle
  • Rubber friction feet: Yes
  • Size: 86 x 84 x 11 mm
  • Spectra Speed Dial: Yes
  • Warranty: 5 years*
  • Weight: 26 grams

*5-year warranty against defects in manufacture or materials. 

All compasses we stock are MS (southern hemisphere) models balanced for use in Australia and New Zealand.

Warranty Information

5-year warranty against defects in manufacture or materials

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