Garmin Gt51m-Th Ss Th DownvÜ/SidevÜ 500w (Chirp 260/455 Khz) Traditional 600w (Mid-Band Chirp 80-160) Transducer - 12-Pin

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Garmin Gt51m-Th Ss Th DownvÜ/SidevÜ 500w (Chirp 260/455 Khz) Traditional 600w (Mid-Band Chirp 80-160) Transducer - 12-Pin

GT51M-TH - Stainless Steel Thru-Hull DownVü/SideVü 500 W (CHIRP 260/455 kHz) Traditional 600 W (Mid-band CHIRP 80-160 kHz) Transducer with Temp (12-Pin)

Perfect for the coastal and offshore fisherman who want CHIRP traditional sonar, CHIRP ClearVü and CHIRP SideVü scanning sonar with a stainless steel stem, this thru-hull mounted transducer consistently displays clear and crisp fish arches with superior target separation as well as clear pictures of objects, structure and fish that pass below and to each side of your boat and is optimized for rough sea conditions.

The CHIRP ClearVü/ SideVü elements have a power rating of 500 W per element and operating frequencies of 260/455 kHz. The traditional CHIRP sonar has a power rating of 600 W and operating frequencies of mid-band CHIRP 80-160 kHz. It includes a built-in fast-response temperature sensor.  For hull deadrises less than 5 degrees.

GT51M-TH includes a 12-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware and installation instructions. Follow the instructions carefully to avoid damaging your boat.

WarningWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to

Manufacturer Part Number: 010-01966-10

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Manufacturer Part Number: 010-01966-10
  • Mounting Style = Thru-Hull
  • Imagining = Standard/Down/Side
  • Cable Length (Feet) = 5' + 30' y-extension
  • Temperature = Yes
  • Speed Included = No
  • Pins = 12
  • Chirp = Medium/Non Traditional
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Customer Questions
My hull has a 10” keel. Will I need 2 transducers to get a accurate view?
Pair transducers or transducer readings are more about the deadrise angle than the keel. If your deadrise angle is shallow enough, then you can get a reading with one transducer. If the deadrise angle is too steep, you will need paired transducers. Usually...
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