520T-BHD 1kW Depth/Temp Bronze B-258 c/w fairing & Furuno 10 pin plugB258 is an excellent, economical, 1 kW, dual frequency transducer for anglers. Its unique four ceramic element construction produces an elliptical beam that covers a wider area and produces excellent target resolution. The combination of 50 and 200 kHz make it a great option for both shallow and deep water use. The included high performance fairing gives excellent results at speeds up to 30 knots (34 MPH). Features Depth and fast response water