Humminbird AS GPS HS Precision GPS Receiver with Heading Sensor,
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Annie
> 3 dayworks well - replacement for the original which is not longer available.
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Dan
> 3 dayGreat heading sensor and GPS. Helps show position when not moving.
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GOU
> 3 dayGreat Product!
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Sarah Engel
> 3 dayGreatly improved the accuracy on our Helix 9, when we are stopped, the boat stays pointed in the correct direction on the display