I'd been running without a speedo for years, but after getting some 'feedback' from the Coastguard after returning to the ramp that I was probably over the 5 knot limit I decided it was time to get a GPS speedo (From Amazon - [ Ссылка ]) to keep tabs on my speed. Here is my installing into a fibreglass runabout OMC Evinrude Control unit, and how it performed in the water.
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