Marine Depth Finders & Components
Featured Brands
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Raymarine® - RealVision 3D™ Bronze External Thru-hull Mount TransducerRealVision 3D™ Bronze External Thru-hull Mount Transducer by Raymarine®. Material: Bronze. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...Engineered to high standardsHigh-grade design delivers extended lifespan$1,017.56 - $1,226.81Availability Varies - Depends on Product Options - Raymarine® - RealVision 3D™ Bronze External Thru-hull Mount Transducers with 33' Cable, PairRealVision 3D™ Bronze External Thru-hull Mount Transducers with 33' Cable, Pair by Raymarine®. Material: Bronze. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...Engineered to high standardsHigh-grade design delivers extended lifespan$2,109.75In Stock - Ships within 24 hrs
- Raymarine® - RealVision 3D™ Plastic External Thru-hull Mount TransducerRealVision 3D™ Plastic External Thru-hull Mount Transducer by Raymarine®. Material: Plastic. Designed for inboard or outboard boats, the RV Thru-Hull Transducer lets you easily identify structures and locate fish with the life-like...Engineered to high standardsHigh-grade design delivers extended lifespan$776.46 - $972.69Availability Varies - Depends on Product Options
- Raymarine® - RealVision 3D™ Plastic External Thru-hull Mount Transducers with 33' Cable, PairRealVision 3D™ Plastic External Thru-hull Mount Transducers with 33' Cable, Pair by Raymarine®. Material: Plastic. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...Engineered to high standardsHigh-grade design delivers extended lifespan$1,659.37 - $1,971.26Availability Varies - Depends on Product Options
- Raymarine® - RealVision 3D™ RV-100 Plastic Transom Mount Transducer with 26' CableRealVision 3D™ RV-100 Plastic Transom Mount Transducer with 26' Cable by Raymarine®. Measures: Depth/Temperature. Frequency: 50-60/200-350kHz. Max Power: 600W. Accommodates Deadrise: 0° - 90°. Raymarine’s RV-100 All-In-One Transom...Engineered to high standardsHigh-grade design delivers extended lifespan$390.00In Stock - Ships within 24 hrs
- Raymarine® - Tilted Element™ Bronze Flush Thru-hull Mount TransducerTilted Element™ Bronze Flush Thru-hull Mount Transducer by Raymarine®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product...The transducer’s ceramic elements are permanently tilted inside the housing to compensate for the hull deadrise. This ensures the beam is aimed straight down, resulting in maximum echo returns and eliminating the need for a fairingLow profile design extends only 6mm below the hull$340.38 - $2,858.49Availability Varies - Depends on Product Options
- Rig Rite® - Horizontal Transducer Mounting PlateHorizontal Transducer Mounting Plate by Rig Rite®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Rig Rite® will...Engineered to high standardsHigh-grade design delivers extended lifespan$23.73 - $31.49In Stock - Ships in 24 to 48 hrs
- Rig Rite® - Transducer/Paddle Wheel Mounting PlateTransducer/Paddle Wheel Mounting Plate by Rig Rite®. Helps to eliminate drilling permanent holes below the water line to prevent leakage. Makes it easy to install, move or adjust your transducer to get the maximum benefit from your fish...Engineered to high standardsHigh-grade design delivers extended lifespan$40.53 - $53.13Availability Varies - Depends on Product Options
- Simrad® - Airmar xSonic 9-Pin Bronze Flush Thru-hull Mount Transducer with 33' CableAirmar xSonic 9-Pin Bronze Flush Thru-hull Mount Transducer with 33' Cable by Simrad®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind,...Engineered to high standardsHigh-grade design delivers extended lifespan$473.47 - $586.47Availability Varies - Depends on Product Options
- Simrad® - Airmar xSonic 9-Pin Plastic In-hull Mount TransducerAirmar xSonic 9-Pin Plastic In-hull Mount Transducer by Simrad®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...Engineered to high standardsHigh-grade design delivers extended lifespan$157.07 - $1,309.67Availability Varies - Depends on Product Options
- Simrad® - Airmar xSonic Bronze External Thru-hull Mount TransducerAirmar xSonic Bronze External Thru-hull Mount Transducer by Simrad®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...Engineered to high standardsHigh-grade design delivers extended lifespan$292.67 - $2,744.77Availability Varies - Depends on Product Options
- Simrad® - Airmar xSonic Plastic Transom Mount TransducerAirmar xSonic Plastic Transom Mount Transducer by Simrad®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Simrad®...Engineered to high standardsHigh-grade design delivers extended lifespan$202.27 - $2,439.67Availability Varies - Depends on Product Options
- Simrad® - Airmar xSonic Stainless Steel Flush Thru-hull Mount Transducer with 33' CableAirmar xSonic Stainless Steel Flush Thru-hull Mount Transducer with 33' Cable by Simrad®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...Engineered to high standardsHigh-grade design delivers extended lifespan$518.67 - $1,874.67Availability Varies - Depends on Product Options
- Humminbird® - 14-Pin Transducer Extension Cable14-Pin Transducer Extension Cable by Humminbird®. Connection Type: 14-Pin. Ready for your next trophy catch with the latest fishing gear? Complete your arsenal with quality and dependable fishing gear that will work best for your next...Engineered to high standardsHigh-grade design delivers extended lifespan$63.01 - $82.19Availability Varies - Depends on Product Options
- Furuno® - Transducer Adapter CableTransducer Adapter Cable by Furuno®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...Engineered to high standardsHigh-grade design delivers extended lifespan$55.42 - $155.94Availability Varies - Depends on Product Options
- Furuno® - Transducer Extension CableTransducer Extension Cable by Furuno®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...Engineered to high standardsHigh-grade design delivers extended lifespan$85.12 - $558.10Availability Varies - Depends on Product Options
- Minn Kota® - Transducer Adapter CableTransducer Adapter Cable by Minn Kota®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Minn Kota® will last a...Designed to strict industry standards for unmatched qualityRigorously tested to have minimal environmental impact$10.32 - $55.50Availability Varies - Depends on Product Options
- Raymarine® - 10-Pin Transducer Extension Cable10-Pin Transducer Extension Cable by Raymarine®. Connection Type: 10-Pin. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product...Engineered to high standardsHigh-grade design delivers extended lifespan$31.55 - $120.81Availability Varies - Depends on Product Options
- Raymarine® - 11-Pin Transducer Extension Cable for CP450C Sonars11-Pin Transducer Extension Cable for CP450C Sonars by Raymarine®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...Engineered to high standardsHigh-grade design delivers extended lifespan$61.69 - $77.25Availability Varies - Depends on Product Options
- Raymarine® - 25-Pin Transducer Extension Cable25-Pin Transducer Extension Cable by Raymarine®. Connection Type: 25-Pin. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...Engineered to high standardsHigh-grade design delivers extended lifespan$95.18 - $181.22In Stock - Ships within 24 hrs
- Raymarine® - Transducer Adapter CableTransducer Adapter Cable by Raymarine®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Raymarine® will last a...Engineered to high standardsHigh-grade design delivers extended lifespan$33.80 - $99.33Availability Varies - Depends on Product Options
- Raymarine® - Transducer Y-CableTransducer Y-Cable by Raymarine®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at...Engineered to high standardsHigh-grade design delivers extended lifespan$60.70 - $121.41Availability Varies - Depends on Product Options
- Simrad® - Transducer Adapter CableTransducer Adapter Cable by Simrad®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality...Engineered to high standardsHigh-grade design delivers extended lifespan$24.85 - $49.71Availability Varies - Depends on Product Options
- Lowrance® - ActiveTarget™ Sonar ModuleActiveTarget™ Sonar Module by Lowrance®. See high-resolution images of fish swimming around structure and responding to your lure – as it happens – with new ActiveTarget™ Live Sonar. Featuring Forward, Down or Scouting views,...Get three views from one transducer: Forward view ahead of your boat, Down view below your boat or Scout view – an ultra-wide, overhead view in front of your boatSee how fish are positioned in and around structure and watch them respond to your lure as it happens$549.00 - $1,249.00Availability Varies - Depends on Product Options
- Lowrance® - Fish Finder Unit CoverFish Finder Unit Cover by Lowrance®. You want to protect your valuable Lowrance electronics, and who can blame you? They are what make your boating and fishing trips so exciting! That is why Lowrance provides protective covers that fit...Engineered to high standardsHigh-grade design delivers extended lifespan$16.99 - $22.99Availability Varies - Depends on Product Options
- Lowrance® - Fish Finder/Chartplotter Bezel/Card DoorFish Finder/Chartplotter Bezel/Card Door by Lowrance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...Engineered to high standardsHigh-grade design delivers extended lifespan$36.99Availability Varies - Depends on Product Options
- Lowrance® - Fish Finder/Chartplotter Unit CoverFish Finder/Chartplotter Unit Cover by Lowrance®. You want to protect your valuable Lowrance electronics, and who can blame you? They are what make your boating and fishing trips so exciting! That is why Lowrance provides protective...Engineered to high standardsHigh-grade design delivers extended lifespan$16.99 - $38.99Availability Varies - Depends on Product Options
- Lowrance® - StructureScan™ 3D Sonar ModuleStructureScan™ 3D Sonar Module by Lowrance®. StructureScan 3D gives freshwater and saltwater anglers a unique, three-dimensional view of fish, structure and bottom contours - making it easier to understand where fish and structure are...Engineered to high standardsHigh-grade design delivers extended lifespan$659.00 - $1,109.00In Stock - Ships within 24 hrs
- Humminbird® - Device Specific Fish Finder In-Dash Mount KitDevice Specific Fish Finder In-Dash Mount Kit by Humminbird®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by...Engineered to high standardsHigh-grade design delivers extended lifespan$72.48 - $73.53In Stock - Ships within 24 hrs
- Humminbird® - Device Specific Fish Finder/Chartplotter Bail Mount with KnobsDevice Specific Fish Finder/Chartplotter Bail Mount with Knobs by Humminbird®. Ready for your next trophy catch with the latest fishing gear? Complete your arsenal with quality and dependable fishing gear that will work best for your...Engineered to high standardsHigh-grade design delivers extended lifespan$31.91 - $81.34Availability Varies - Depends on Product Options
A depth finder is a navigation device that can greatly increase your safety offshore and significantly improve the comfort of boating. Also known as a depth sounder or echo sounder, the device typically makes use of sonar technology to determine the precise depth of water as well as pinpoint the objects underwater near your boat. The device makes it possible to determine shallow places dangerous for navigation and find out the depth and location of fish.
Sonar is a method that uses sound navigation technology and ranging. When the sound waves sent by the depth finder penetrate the water, they are reflected by the objects the waves encounter and are then sent back to the sonar. Based on the time it takes for the sound waves to be reflected from the objects underwater and the size of the wave, the depth finder generates a digital image of the identified objects. Basic depth sounders are designed to simply determine the depth, while some more sophisticated units will create detailed 3 dimensional diagrams that specify an entire range of underwater features.
A depth finder usually consists of two parts: a screen that serves for inputting and outputting the data and a sonar device that emits the sound waves. The first is placed on board, while the latter is positioned underneath the boat. High-tech depth sounder LCD displays can generate monochrome or multicolor 3D maps with a variety of sonar data. The average depth range of personal boat depth finders is between 2.5’ and 200’. Commercial depth sounders are usually more advanced and expensive, being capable of working at greater depths with additional precision. Accurate sonar readings can be made at speeds not higher than 63 mph.
Most modern depth finders have auto-sensitivity and auto-ranging features. Swiftly reacting to the detected changes in depth, the depth sounder has a three-stage warning system. Giving audible and visual upper and lower depth alarm signals, the device allows you to quickly react to any potential hazards. Including GPS and pre-loaded cartography, depth finders are capable of providing you with almost picture-like image of the water underneath your boat. Coupled with a proper shoot-through, through-hull or transom mount transducer, your depth finder will always deliver its top performance.