Galileo Digital Magnetic Compass

GALILEO DMC300 is a versatile, low powered and compact digital magnetic compass. The device measures magnetic heading with high accuracy, and is suitable for land and marine applications.


DMC300 comprises triaxial solid state MEMS accelerometer and magnetometer sensors. Accelerometer is used to measure the roll and pitch in near-static conditions and magnetometer is used for estimation of heading. The roll and pitch measurements are used for tilt compensation of heading angle. The DMC300 runs a proprietary digital filter for noise reduction and computation of heading information even under dynamic conditions.


DMC300 is a plug-and-play device with configurable update rates and RS232 and RS485 interfaces. DMC300 is most suited for compassing, surveying, antenna orientation and other direction sensing applications.

Key Features

High accuracy compass

Digital compass heading with high resolution and accuracy


RS232 and RS485 interface options

Tilt Compensation

Heading compensation for low dynamics Roll, Pitch movement


User Calibration

On site Hard-iron and Soft-iron calibration using software utility

Low Power Consumption

Power consumption < 2W

Low Noise MEMS sensors

Low noise tri-axial accelerometer and magnetometer sensors

Technical Specifications

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Product Documents



 Yes using the software utility

Yes update rate is configurable using software utility.

The entire setup in which the DMC is installed needs to be rotated, for instance if installed in a boat the boat needs to be rotated in the horizontal plane for proper calibration (This procedure is called Compass swinging procedure (

Yes the compass is tilt compensated, it has accelerometers as gravity level to sense Roll, Pitch angles

Refer to the quick start guide in the user manual

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