Davis Happy Troller Large Trolling Plate f/IO's + All Outboards 50hp & Larger [460] Specials 500W total) and operating frequencies

500W total) and operating frequencies of 260/455 kHz

The CHIRP DownVü and SideVü (455/800 kHz) elements have a power rating of 500 W each (1

Fits 3-1/4" (MKP-2) and 3-5/8" (MKP-25) diameters

and automatic operation using Raymarine's next-generation ClearPulse™ digital sonar processing

advanced corrosion protection and our revolutionary new Mono-Arm

Davis Happy Troller Large Trolling Plate f/IO's + All Outboards 50hp & Larger [460] Specials 500W total) and operating frequenciesHappy Troller Large Plate Large Troller: Fits inboard outboards plus all outboard motors 50 hp and larger. For the Fisherman who thinks he has everything! Slows even big motors down to that "ever so slow" fish tantalizing speed. A significant invention in the sport of troll fishing, Happy Troller mounts on the anti cavitation plate to allow fine control of trolling speed. At cruising speed, your boat's stability is enhanced. Locks in "down" position