GT15M-THF 20 Degree 600W SS Thru-Hull TransducerDesigned for reduced drag and optimum sonar performance on midsize fishing and cruising boats, this flush-mounted, 600-watt mid-band CHIRP transducer clearly defines fish arches, structure, and bottom depth returns on the display.Midband Chirp Traditional SonarThis 8-pin, 600-watt stainless steel thru-hull transducer features high-definition mid-band CHIRP sonar that clearly defines fish targets and structures down to 1,200’ in saltwater and 1,900’ in freshwater.Broad Frequency RangeUse the perfect frequency for the waters being fished. Covering the medium frequency range, this transducer pulses from 85–165 kHz, displaying a wide coverage area, crisp fish arches, and accurate depth readings.Optimum Ping SensitivityOffering excellent sonar sensitivity, low noise, high resolution, and good separation of targets, this robust transducer makes it easier than ever to distinguish fish and structure on a compatible chartplotter display.Thru-Hull InstallationA durable stainless steel housing and stem offer straightforward thru-hull flush mounting for minimum drag and optimum beam orientation for clear sonar returns.Auto-ID TechnologyEnjoy simple plug-and-play operation with Garmin auto-identification technology — which enables the sonar to configure itself to the transducer being used automatically.Fits Various Hull TypesConfigurable for various boat hull materials, including fiberglass, composite, steel, aluminum, and wood, the transducer is available in a range of tilt versions to accommodate deadrise angles of 0–20 degrees without a fairing block.Specifications:Transducer Frequency: Medium band chirp (85-165 Khz)Transducer Power: 600 WTransducer Beam Width: 24-16 degreesTransducer Maximum Depth: 1200 Ft Saltwater; 1900 Ft FreshwaterTransducer Cable Length: 50 ft.Transducer Depth/Speed/Temperature: Depth, temperatureTransducer Number of Pins: 8-PinTransducer Supported Deadrise/Transom Angles: 20 degrees support hull deadrise angles from 16 degrees to 24 degreesHousing Material: Stainless steelIn the Box:GT15M-THF transducerJam nutWasherThread isolatorHull isolatorDocumentation