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The Perfect GPS device addon for your iPhone or iPad, whether you're on land, in the air or on the water. Now with barometric sensor for tracking altitude.

The Perfect GPS device addon for your iPhone or iPad, whether you're on land, in the air or on the water. (For single Units)

The Perfect GPS device addon for your iPhone or iPad, whether you're on land, in the air or on the water.

“Combination AIS/VHF and GPS antenna for Class B transponders which makes for a super quick and high performance installation”

The GPS150USB combines an extremely accurate 50 channel GPS with GLONASS, a satellite positioning system for PC, Mac or Linux Systems

“Fluxgate compass with auto calibration and fast heading output for MARPA or course up radar stabilisation”