Luhr Jensen Luhr Speed Troll-Speed Indicator

Luhr Jensen Luhr Speed Troll-Speed Indicator: Accurate within 1/10 of a knot Easily control speed so lure is at optimum performance Easily fits most boat hulls, even sail boats Reads both knots or MPH (miles per hour) Unaffected by wind or wave action Corrosion-resistant construction Heavy 16 oz ball No batteries required