High Precision Fiber Optic Gyro North Finder 0.1° True North Seeker for Surveying, Mining, Tunnel, Radar & Antenna Alignment, RS422/RS232, GNSS-Denied

A North Finder, also called a north seeker​ or gyrocompass module, is a high-precision inertial orientation device that determines True North​ using Earth’s rotation instead of a magnetic compass.

It typically integrates a fiber optic gyroscope (FOG)​ or MEMS gyroscope, accelerometers, a rotation/indexing mechanism, and a DSP/MCU for azimuth calculation.

Unlike a magnetic compass, a north finder is immune to steel, magnets, power lines, and electromagnetic noise. It does not require GPS/GNSS, making it ideal for underground, indoor, battlefield, tunnel, and shielded environments.

Core output:

• True north azimuth / heading (0°–360°)

• Pitch angle

• Roll angle

• Angular rate / attitude data (optional)

• Latitude-compensated orientation reference

1. Surveying & Geodesy

• Total station orientation

• Laser tracker alignment

• Control network establishment without GNSS

• Tunnel, canyon, urban canyon, indoor survey

Please let us know your specific requirements, as we accept customization.