Garmin In-Hull Mid-Band CHIRP Depth Transducer GT15M-IH (85-165 kHz, 600W) (8-pin)


Brand new and boxed Garmin GT15M-IH In-Hull 600 W CHIRP 85-165kHz Depth Transducer – 8pin connector

SKU: ETGDI8ch15TM Categories: , , , Tags: , , , , ,


The GT15M-IH transducer is ideal for boat owners whot want to install the transducer inside a fiberglass hull and not on the transom where cavitation could cause issues. It can be used with a hull deadrise angle between 0 and 25 degrees and is excellent for boats traveling at high speeds that want to maintain accurate depth readings.
The 8-pin transducer with 4 plastic tanks supplied and features mid-band CHIRP traditional sonar (85-165 kHz) and has a power rating of 600 W.
It can be used in conjunction with a GT30-TM transducer and an adapter cable so you can maintain depth at high speeds and scanning capabilities at trolling speeds.
For installation, follow the included instructions carefully to avoid damaging your boat.

Supplied in the box:


  • GT15M-IH transducer
  • 4 plastic tanks
  • Mounting hardware
  • Documentation



Weight: 1.00 lbs. (0.45 kg)
Cable length: 20 ft
Number of pins on connector: 8
Transducer: Ø 3.7 x 2.0 in (93 x 51.5 mm)
Installed in largest tank: Ø94 x 86.5 mm
Traditional: CHIRP 85-165 kHz
Transmit power:
Traditional: 600 W
Max Depth:
Traditional: 1,900 ft
Beam Width (°) LF/HF (-3dB):
Traditional: 24/13


These Transducers are suitable for the current range of Garmin “echo dv” series, “echoMAP dv” series, “echoMAP CHIRP dv” series and “STRIKER dv” series of products inc EchoMAP 45dv and EchoMAP 55dv etc.  NOT suitable for use with older style products with 6pin connector such as 451S or for products with 4pin connector without an Adapter cable type 11947.

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