10 Best Depth Finder with Through Hull Transducer in 2026

Updated on April 2026
#1
HUMMINBIRD
7% Off
  • Dual beam sonar with options for narrow and wide coverage to detect fish and underwater structures.
  • Adjustable tilt and swivel mount for customizable viewing angles.
  • Covers a 1-year limited warranty for reliable use.
  • Package includes PiranhaMAX 4 fish finder, tilt and swivel mount, and XNT 9 28 T transom-mount transducer.
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  • Dual beam sonar with options for narrow and wide coverage to detect fish and underwater structures.
  • Adjustable tilt and swivel mount for customizable viewing angles.
  • Covers a 1-year limited warranty for reliable use.
  • Package includes PiranhaMAX 4 fish finder, tilt and swivel mount, and XNT 9 28 T transom-mount transducer.
#2
Best Value
HAWKEYE
23% Off
  • Provides accurate depth readings from 2.5 to 600 feet on a large in-dash display at speeds up to 60 mph, using a 200 kHz transducer frequency.
  • Features ShootThru sonar technology enabling depth measurements through solid fiberglass and up to 1/8-inch aluminum hulls.
  • Includes a 3-stage Advanced Warning System with audible alerts, bright red LED warnings, and LCD indicators for alarm conditions.
  • Polarized LCD display minimizes glare for clear visibility, with storage sun cover; advanced programming reduces false readings for precise data.
  • Manufactured in the USA and overseas, utilizing innovative technology designed with American ingenuity.
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  • Provides accurate depth readings from 2.5 to 600 feet on a large in-dash display at speeds up to 60 mph, using a 200 kHz transducer frequency.
  • Features ShootThru sonar technology enabling depth measurements through solid fiberglass and up to 1/8-inch aluminum hulls.
  • Includes a 3-stage Advanced Warning System with audible alerts, bright red LED warnings, and LCD indicators for alarm conditions.
  • Polarized LCD display minimizes glare for clear visibility, with storage sun cover; advanced programming reduces false readings for precise data.
  • Manufactured in the USA and overseas, utilizing innovative technology designed with American ingenuity.
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#3
FARIA
  • 1-year warranty
  • Maximum depth capability of 199 feet (61m)
  • Designed to fit a standard 22-1/16" gauge hole
  • Verify compatibility before purchase
  • Maximum current drain of 90 mA with the included transducer
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  • 1-year warranty
  • Maximum depth capability of 199 feet (61m)
  • Designed to fit a standard 22-1/16" gauge hole
  • Verify compatibility before purchase
  • Maximum current drain of 90 mA with the included transducer
#4
HUMMINBIRD
27% Off
  • Compatible with multiple HELIX models with GPS: HELIX 5 G2/G3, HELIX 7 G2/G3/G4, HELIX 7 G2N/G3N/G4N, HELIX 8 G3N/G4N, HELIX 9 G2N/G3N/G4N, HELIX 10 G2N/G3N/G4N, HELIX 12 G2N/G3N/G4N, and ICE HELIX G2/G3 (Open Water Mode)
  • Cable length of 15 feet for extended reach
  • Supports 2D sonar only for compatible Side and Down Imaging units
  • Dual Spectrum CHIRP frequencies range from 150-240 kHz
  • Maximum depth capability of 1200 feet (365 meters)
  • Comes with a 1-Year Limited Warranty
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  • Compatible with multiple HELIX models with GPS: HELIX 5 G2/G3, HELIX 7 G2/G3/G4, HELIX 7 G2N/G3N/G4N, HELIX 8 G3N/G4N, HELIX 9 G2N/G3N/G4N, HELIX 10 G2N/G3N/G4N, HELIX 12 G2N/G3N/G4N, and ICE HELIX G2/G3 (Open Water Mode)
  • Cable length of 15 feet for extended reach
  • Supports 2D sonar only for compatible Side and Down Imaging units
  • Dual Spectrum CHIRP frequencies range from 150-240 kHz
  • Maximum depth capability of 1200 feet (365 meters)
  • Comes with a 1-Year Limited Warranty
#5
FARIA
  • Dimensions: 8.8 x 8.4 x 8.2 inches
  • Weight: 2.6 pounds
  • Quantity: 1
  • Type: Electromechanical Gauge
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  • Dimensions: 8.8 x 8.4 x 8.2 inches
  • Weight: 2.6 pounds
  • Quantity: 1
  • Type: Electromechanical Gauge
#6
HUMMINBIRD
  • Includes a transom mount transducer for easy installation.
  • Available bezel colors: White, Black, and Chrome.
  • Face plate options: White and Black.
  • Faceplate diameter with bezel is 2.5"; diagonal LCD size is 1-3/8".
  • Backed by a 1-Year Limited Warranty.
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  • Includes a transom mount transducer for easy installation.
  • Available bezel colors: White, Black, and Chrome.
  • Face plate options: White and Black.
  • Faceplate diameter with bezel is 2.5"; diagonal LCD size is 1-3/8".
  • Backed by a 1-Year Limited Warranty.
#7
HAWKEYE
  • Includes a Temp Thru Hull Transducer for accurate depth readings
  • Provides simultaneous air and water temperature measurements
  • Requires a 2" hole for transducer installation
  • Refer to the user manual for detailed installation instructions
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  • Includes a Temp Thru Hull Transducer for accurate depth readings
  • Provides simultaneous air and water temperature measurements
  • Requires a 2" hole for transducer installation
  • Refer to the user manual for detailed installation instructions
#8
HAWKEYE
  • Algorithmic Programming
  • Water Temperature
  • Air Temperature
  • Keel Offset
  • Standard and Metric Readings
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  • Algorithmic Programming
  • Water Temperature
  • Air Temperature
  • Keel Offset
  • Standard and Metric Readings
#9
ESTINK
  • Working voltage range of 9-32V, providing accurate and instant depth readings with low power consumption.
  • Durable and impact-resistant design suitable for various marine vessels including yachts and fishing boats.
  • Constructed with stainless steel 316L bezel and anti-fog glass for resilience in harsh marine conditions.
  • Operates on 12V system with reliable depth indication; audible confirmation upon proper connection.
  • User-friendly interface allows easy switching between modes and quick adjustments for personalized settings.
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  • Working voltage range of 9-32V, providing accurate and instant depth readings with low power consumption.
  • Durable and impact-resistant design suitable for various marine vessels including yachts and fishing boats.
  • Constructed with stainless steel 316L bezel and anti-fog glass for resilience in harsh marine conditions.
  • Operates on 12V system with reliable depth indication; audible confirmation upon proper connection.
  • User-friendly interface allows easy switching between modes and quick adjustments for personalized settings.
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#10
ESTINK
  • Working voltage range of 9-32V, providing accurate and instant depth readings with low power consumption.
  • Durable and impact-resistant design suitable for various marine vessels including yachts and fishing boats.
  • Constructed with stainless steel 316L bezel and anti-fog glass for resilience in harsh marine conditions.
  • Operates on 12V system with reliable depth indication; audible confirmation upon proper connection.
  • User-friendly interface allows easy switching between modes and quick adjustments for personalized settings.
Read More
  • Working voltage range of 9-32V, providing accurate and instant depth readings with low power consumption.
  • Durable and impact-resistant design suitable for various marine vessels including yachts and fishing boats.
  • Constructed with stainless steel 316L bezel and anti-fog glass for resilience in harsh marine conditions.
  • Operates on 12V system with reliable depth indication; audible confirmation upon proper connection.
  • User-friendly interface allows easy switching between modes and quick adjustments for personalized settings.
Read More

How We Estimate & Rank

We make shopping simple by hand-picking the top 10 Depth Finder with Through Hull Transducer just for you. Our team focuses on what’s available right now, what’s popular with other shoppers, and, most importantly, what’s most relevant to your search. We cover leading brands such as Humminbird, Hawkeye, Faria, Estink, Raymarine, and other trusted names in this category. By filtering out the noise, we ensure you only see high-quality options that actually meet your needs. It’s all the best finds, minus the endless scrolling!

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PRODUCTS SCANNED & ANALYZED

Final Recommendations

We’ve selected three standout options to make your choice easier.

BEST OVERALL

Our overall winner is Humminbird PiranhaMAX 4 Fish Finder with Transducer by Humminbird, earning top marks for its balanced combination of quality, performance, and price.

Humminbird PiranhaMAX 4 Fish Finder with Transducer, Dual Beam Sonar
BEST VALUE

The best value for most shoppers is DepthTrax 2B Boat Mount In Dash Digital Depth Finder by Hawkeye, earning consistently positive feedback for its performance and accessible pricing.

DepthTrax 2B Boat Mount In Dash Digital Depth Finder
BEST DEAL

The best deal available right now for Fish Finders & Depth Finders is Humminbird In-Hull Transducer for HELIX with Dual Spectrum CHIRP Sonar – XP 9 HW by Humminbird, now offered at 27% off.

Humminbird In-Hull Transducer for HELIX with Dual Spectrum CHIRP Sonar – XP 9 HW