a sophisticated magnetic compass used as a basic surveying instrument. Also known as the "Brunton Pocket Transit".

a type of compass made by the company Brunton Inc

A pocket compass equipped with sights and a reflector, used for sighting lines, measuring dip and carrying out preliminary surveys.

A pocket compass equipped with sights and a reflector, useful for sighting lines, measuring dips and carrying out preliminary surveys.

A special compass used in surveying with an attached inclinometer and sighting device.

A Brunton compass , properly known as the Brunton Pocket Transit, is a type of precision compass made by Brunton Inc. of Riverton, Wyoming. Unlike most modern compasses, the Brunton Pocket Transit utilizes magnetic induction damping rather than fluid to dampen needle oscillation. Although Brunton Inc. makes many other types of magnetic compasses, the Brunton Pocket Transit is a specialized instrument used widely by those needing to make accurate degree and angle measurements in the field.