About the Garmin GT8HW-IH

Find success on the water with an in-hull transducer
Find success on the water with an in-hull transducer
Garmin's GT8HW-IH 8-pin in-hull transducer makes it easier to find fishing spots thanks to high-wide CHIRP sonar that'll let you maintain depth accuracy, even when your craft is moving quickly. Got a fiberglass bass boat? Installing this transducer in the hull will help you avoid transom-mounted issues caused by cavitation bubbles. It boasts 250 watts of power so it can read down to 800 feet in freshwater. Pair it with select Garmin transom-mount transducers and an adapter cable so you can maintain depth at high speeds and scanning capabilities at trolling speeds.
The GT8HW-IH's included cable runs 20 feet, and Garmin gives you an in-hull fitting to help with installation.
Installation Note: If you haven't attempted this type of installation before, we recommend you consult with a professional.
Product highlights:
- 8-pin marine sonar transducer with 20' cable
- in-hull fitting included
- equipped with high-wide CHIRP (145-230 kHz) sonar:
- 800-foot range below your boat (freshwater)
- beamwidth: 24°-16°
- depth readings
- compatible with many Garmin ECHOMAP and GPSMAP chartplotters (adapter required in some cases)
- power: 250 watts
- 0°- 6° deadrise angle supported
- warranty: 1 year
- MFR # 010-12401-10
What's in the box:
Garmin GT8HW-IH owner's manual
- Sonar transducer with attached 20' cable (Blue 8-pin female connector)
- Protective collar
- Rubber gasket (red)
- 3" Diameter adhesive-backed foam in-hull mount
- Instructions
- Collar install instructions
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Features
Overview: The Garmin GT8HW-IH is an in-hull mount sonar transducer. This 8-pin transducer has high-wide CHIRP traditional sonar (145-230kHz) and a 250-watt power rating. You can mount it in a flat section (less than 6° rise) inside a fiberglass hull to avoid cavitation issues common with transom-mounted transducers. It is an excellent way to maintain accurate depth readings in boats travelling at high speeds. With the optional Garmin Y-cable (010-12445-33), you can use the GT30-TM transom-mount transducer with the GT9HW-IH in-hull transducer to get depth readings at high speeds and scanning at trolling speeds. The GT8HW-IH has an attached 20' cable with a blue 8-pin connector, and an adhesive-backed foam in-hull fitting.
Specifications:
- Frequency: CHIRP High Wide (145-230kHz)
- Power: 250 watts
- Beamwidth: 24° - 16°
- Maximum Depth: 800 feet (freshwater)
- Number of Pins: 8-pin
- Supported Deadrise Angles: 0° to 6°
- Dimensions: Diameter 2" Height 1.753"
- Cable Length: 20 feet
- Weight: 9.35 ounces
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