Garmin 4-Pin Dual Beam Transducer for echoMAP Series  £67.49

This dual beam transducer replaces the one included with your echo series fishfinder.

A 500 W 4-pin transducer; an operating frequency of 77 to 200 kHz; a beamwidth of 45 to 15 degrees; and mounts on a 0 to 70-degree transom.

Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat.