I bought this speedometer back in the 80's for a boat
I had back then and never got around to installing it. Then I sold
and got another, didn't get around to putting it in that one either and into a cabinet it went.
I re-discovered recently and I'm not going to be using it in the forseeable future so it's needing a new home with someone who would like a thru hull
speedo that can be calibrated to show boat speed in either kts or mph. It has a 12v power cord and also a 9v battery
for independent operation. It has a backlight also.
Blowing on the impeller gets a reading, and also shows whether the boat is accelerating or decellerating:
$50 shipped CONUS
Thanks for looking!