How to clock speeds?

[Mtwinste]

I see y'all talk about clocking with GPS. what unit r u mounting in the boats?

[arp1500]

all the garmins check speed, or you can use your smart phone and download the speedo app

[Chilli]

Garmin Forerunner 201 :thumbup1:

[Mtwinste]

Duh. I'll use my Garmin 801!!!! I forgot!

[arp1500]

there u go