Furuno 520T-BLD Bronze Thru Hull B117 Depth/Temp 10-PinThe Furuno 520T BLD Bronze Thru Hull Depth and Temp Transducer with a 10 pin connector delivers dependable depth and temperature readings for small to mid size boats. Its bronze, low profile housing minimizes drag on fiberglass or wooden hulls and simplifies installation with a 30 foot cable and right angle exit. Dual frequency depth and temperature: 50 kHz (600 W) with a 45 beam reaching up to 353 m (1,200 ft); 200 kHz with a 12 beam reaching up to