Geological

Brunton Base-Plate Compasses

The Brunton range of base-plate compasses is made in the USA. Below you'll find the respective features and specs.

TruArc3     TruArc 3

Brunton TruArc 3 for basic orienteering and mapping needs

  • TruArc™ Global Needle (accurate in both northern & southern hemisphere) tilts up to 20˚ for balanced use world wide
  • Tool-free adjustable declination between true north and magnetic north
  • Inch/millimetre scales for accurate and effective map work
  • 2˚ resolution azimuth ring provides accurate readings
  • Liquid-free dial so it doesn’t freeze

 

TruArc 10     TruArc 10

Brunton TruArc 10

  • TruArc™ Global Needle (accurate in both northern & southern hemisphere) tilts up to 20˚ for balanced use world wide
  • Tool-free adjustable declination between true north and magnetic north
  • Meridian lines on vial assist during pre-trip planning when aligning with map grid lines
  • Reversible inch/millimetre scale for accurate and effective map work
  • Romer scales provide maximum accuracy of latitude and longitude for easy integration with handheld GPS unit
  • Brunton Ever-North Magnet eliminates misreadings and interference from things like metal, phones and radios. It will also resist demagnetization over time
  • Global Balance Dial enables accurate readings while on the move
  • Magnified readout provides highest degree of accuracy without compromising readability
  • Double-gauge, ergonomic base-plate is durable and comfortable in hand 
  • High visibility cling for enhanced performance in low light; can be removed to facilitate map use
  • 1˚ resolution azimuth ring provides precise readings


TruArc15     TruArc 15

Brunton TruArc 15 with Level & Sighting Mirror

  • TruArc™ Global Needle (accurate in both northern & southern hemisphere) tilts up to 20˚ for balanced use world wide
  • Tool-free declination adjustment between true north and magnetic north
  • Meridian lines on vial assist during pre-trip planning when aligning with map grid lines
  • Inch/millimetre scales for accurate and effective map work
  • Brunton Ever-North Magnet resists demagnetization over time
  • Magnified readout provides highest degree of accuracy without compromising readability
  • Dual azimuth ring includes reverse azimuth 
  • Sighting mirror and sighting line integrated into the cover. Align for the most accurate bearings, whether taking or following a bearing
  • Clinometer with 2˚ resolution for measuring slope angle or gauging heights of passes, peaks or trees 
  • Engineer’s ruler
  • Bubble level for absolute precision readings; keeping the compass level (not the needle level) is a critical aspect for taking an accurate bearings
  • Map magnifier helps with the smaller details on any map 
  • High visibility cling for enhanced performance in low light; can be removed to facilitate map use
  • 1˚ resolution azimuth ring provides precise readings


 

Brunton F9077     Brunton F-9077

Brunton F-9077 - Lensatic Compass

  • Traditional lensatic compass (classic military-style mirrored sighting compass) with sighting line integrated into the cover. Align for the most accurate bearings, whether taking or following a bearing
  • Millimetre scales and long straight edge for accurate and effective map work
  • Magnified readout provides the highest degree of accuracy without compromising readability.
  • Map magnifier helps with the smaller details on any map
  • Metal body folds closed to protect the compass
  • 2˚ MILS resolution azimuth ring provides precise readings
  • The liquid dampened vial has luminous points of reference 

 Specifications

Description TruArc 3 TruArc 10  TruArc 15 Lensatic F-9077
Dimensions 4.1"x2.4"x0.6" 5.2"x2.8"x0.5" 4"x2.5"x0.6"

3"x2.2"1.2"

Open length: 6.5"

Dimensions  104x62x15mm 132x71x12mm 102x63x15mm

76x55x30mm

Open length: 165mm

Weight 1.3oz | 36g 1.7oz | 48g 3.2oz | 91g 3.4oz | 94g
Resolution 1˚ 1˚ 2˚ in MILS
Qty / pack Each Each Each Each


GeoPro Supplies provides a selection of Brunton tools - view the Brunton Product Matrix here.