Humminbird AS GPS HS Precision GPS Receiver with Heading Sensor,

Works great with my Helix 7 on my trolling motor keeping my heading on point while I move direction with my trolling motor.

Well made item, works great with my GPS unit in my boat. Easy plug and play

Exactly as advertised

Perfect, thank you!

Greatly improved the accuracy on our Helix 9, when we are stopped, the boat stays pointed in the correct direction on the display

Kept map from rotating on Humminbird GPS. Worked as expected

Works as advertised. Great price.

Increases accuracy to within a few feet of pin points.

Works exactly as described.

Vastly improved the accuracy of my Helix 10 Mega. Great Product.