Humminbird AS GPS HS Precision GPS Receiver with Heading Sensor,

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

As discribed

I liked the directional feature on my Hummingbird as a result of this antenna, easy to install, easy to place

Works as advertised. Installed up front with my Helix 12 SI. I now have a better gps signal and a stationary heading indicator. Follow the online video on how to program your Helix to use this external sensor in lieu of the internal sensor in the Helix head unit.

works well - replacement for the original which is not longer available.

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

Seems to be extremely accurate and starts up and finds satellites very quickly. The heading sensor is nice so when I have the map set to heading-up it doesnt spin when Im not moving.

Husband needed an extra for his other boat and he’s happy with this purchase, works as described.

Plug and play. Works great with helix 9

I bought this antenna to replace the original gsr50 that came with my unit. It is hands down a better antenna.