Brunton Axis Transit Compass
Now Availabel In High-Visibility Orange
The ultimate tool for geologists, surveyors, and outdoor professionals!
A cutting-edge evolution of the traditional transit, the Brunton Axis Transit Compass is now available in high-visibility orange, making it easier to locate in the field. This revolutionary instrument is the only transit compass in the world that allows simultaneous measurements of strike & dip, trend & plunge, dip & dip direction, or bearing & angle, streamlining data collection with unmatched accuracy and efficiency.
Invented by geoscience educators—now the owners of Brunton—this industry-leading compass is redefining geological fieldwork. Also available in classic silver, the Axis Transit Compass comes with a protective leather case for durability in rugged conditions.
Needle Balancing
Brunton Axis Transit Compass needles are balanced for different geographical zones for improved accuracy. Refer to the Needle Balancing Zone Guide to determine your balancing zone and select the appropriate option below.
Features & Benefits
- Dual-axis hollow hinge for effortless and intuitive measurement of any geological line or plane.
- 360˚ rotating lid enables measurements on any surface, including overhangs. The lid itself can function as a measurement surface.
- Simultaneous strike & dip measurement – the only transit compass in the world with this capability. A simple azimuth ring rotation allows for simultaneous dip angle & dip direction measurement if preferred.
- Lid protractor & secondary axis rotation enable precise trend & plunge measurement.
- Hollow hinge & sighting tube for direct horizontal and vertical sighting measurements.
- Hinge dial for dip angle measurements and multi-purpose protractor functionality.
- Highly accurate contact and sighting measurements for superior geological data collection.
- Dual long-level bubbles ensure precise levelling from the sides and bottom.
- Flat base design allows for easier dip angle and dip azimuth measurements at low angles.
- Automatic needle lock ensures accuracy by stabilising readings.
- Precision NdFeB disc magnet provides exceptional accuracy and resists demagnetisation.
- Magnetic needle can be balanced for use anywhere in the world.
- Induction dampening technology for quick-settling needle stability.
- Sapphire jewel bearing ensures smooth, reliable needle movement for the lifetime of the instrument.
- Needle lock button to secure or release the needle, depending on the model.
- O-ring sealed internal components for enhanced water and dust resistance.
- Compatible with Jacob’s Staff/Tripod ball and socket adaptor for increased versatility.
- Available in Azimuth (0-360) or Quadrant (0-90) formats for diverse field applications.
- Includes a premium leather case for superior protection and portability.
- Proudly made in the USA in Riverton, Wyoming.
Technical Specifications
- Measurement Style: Unique, simultaneous measurement methods
- Dimensions: 99 x 71 x 29 mm
- Weight: 340 g
- Azimuth Accuracy: 1˚ graduations with ±0.5˚ precision
- Hinge Dial Accuracy: 2˚ graduations with ±1˚ precision
- Plumb Clinometer Accuracy: 1˚ graduations with ±0.5˚ precision
- Lid Protractor Accuracy: 1˚ graduations with ±0.5˚ precision
- Declination Adjustment Range: ±180˚
Why Choose the Brunton Axis Transit Compass?
- Best-in-class geological field tool for geologists, surveyors, engineers, and outdoor professionals.
- High-visibility orange finish ensures easy detection in field environments.
- Simultaneous measurement capabilities significantly enhance efficiency and accuracy.
- Built for extreme conditions with durable, water-resistant construction.
- Premium leather case included for secure transport and long-term protection.
