Furuno 520BLD Low Profile 50/200KHZ Bronze Thru HullThe Furuno 520BLD Low Profile Bronze Thru Hull is a dual frequency transducer designed for saltwater boats that require reliable 50 200 kHz sonar performance with a stealthy, low profile through hull mount. Model: Furuno 520BLD Power Rating: 600 Watts Frequency: 50 200 kHz Beam Angles: 45 at 50 kHz; 15 at 200 kHz Mounting: Bronze Thru Hull, Low Profile Cable Length: 30 Foot Connector: 10 Pin Connector This setup provides flexible depth and target