Marine Depth Finders & Components
Featured Brands
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Faria Beede Instruments® - Chesapeake Series Black Dial/Polished Stainless Steel Bezel 2.06" In-Dash Mount Depth GaugeChesapeake Series Black Dial/Polished Stainless Steel Bezel 2.06" In-Dash Mount Depth Gauge by Faria Beede Instruments®. Perimeter-lighted black dial with stylish blue and white graphics, polished stainless steel bezel, contoured white...Deep and Shallow water alarmsProgrammable Keel off-set$208.58 - $279.54In Stock - Ships in 24 to 48 hrs - Faria Beede Instruments® - Chesapeake Series White Dial/Polished Stainless Steel Bezel 2.06" In-Dash Mount Depth GaugeChesapeake Series White Dial/Polished Stainless Steel Bezel 2.06" In-Dash Mount Depth Gauge by Faria Beede Instruments®. Perimeter-lighted white dial with stylish blue and black graphics, polished stainless steel bezel, contoured black...Deep and Shallow water alarmsProgrammable Keel off-set$208.11 - $296.44Availability Varies - Depends on Product Options
- Faria Beede Instruments® - Dress Series White Dial/White Aluminum Bezel 2.06" In-Dash Mount Depth GaugeDress Series White Dial/White Aluminum Bezel 2.06" In-Dash Mount Depth Gauge by Faria Beede Instruments®. Perimeter-lighted white dial with bold black graphics, white aluminum bezel, contoured black pointer, and flat glass lens. Faria...Deep and Shallow water alarmsProgrammable Keel off-set$235.75 - $254.98In Stock - Ships in 24 to 48 hrs
- Faria Beede Instruments® - Euro Series Black Dial/Black Aluminum Bezel 2.06" In-Dash Mount Depth GaugeEuro Series Black Dial/Black Aluminum Bezel 2.06" In-Dash Mount Depth Gauge by Faria Beede Instruments®. Perimeter-lighted black dial with bold white graphics, black aluminum bezel, contoured white pointer, and flat glass lens. Faria...Deep and Shallow water alarmsProgrammable Keel off-set$225.96 - $258.52In Stock - Ships in 24 to 48 hrs
- Faria Beede Instruments® - Kronos Series Spun Aluminum Dial/Polished Stainless Steel Bezel 2.06" In-Dash Mount Depth GaugeKronos Series Spun Aluminum Dial/Polished Stainless Steel Bezel 2.06" In-Dash Mount Depth Gauge by Faria Beede Instruments®. Transducer Type: In-Hull Mount Transducer. Polished Stainless Steel Bezel, Flat Glass Lens, Perimeter Lighted...Deep and Shallow water alarmsProgrammable Keel off-set$298.81In Stock - Ships in 24 to 48 hrs
- Faria Beede Instruments® - Platinum Series Silver Dial/Polished Stainless Steel Bezel 2.06" In-Dash Mount Depth GaugePlatinum Series Silver Dial/Polished Stainless Steel Bezel 2.06" In-Dash Mount Depth Gauge by Faria Beede Instruments®. Transducer Type: Transom Mount Transducer. Polished Stainless Steel Bezel, Domed Fog-Resistant Lens, Perimeter...Deep and Shallow water alarmsProgrammable Keel off-set$216.11In Stock - Ships in 24 to 48 hrs
- HawkEye® - DepthTrax™ 2BX 2" Depth FinderDepthTrax™ 2BX 2" Depth Finder by HawkEye®. The DepthTrax 2BX includes all the advanced sonar, depth alarm, and keel offset capabilities of the DepthTrax 2B, but also integrates dual temperature displays and an AIRMAR®....600' depth rangeDelivers precise readings and auto targets and intensifies bottom echoes for error free readings$141.00 - $184.21Availability Varies - Depends on Product Options
- Lowrance® - 7-Pin Transducer Extension Cable7-Pin Transducer Extension Cable by Lowrance®. Connection Type: 7-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$44.99In Stock - Ships within 24 hrs
- Lowrance® - 8-Pin 10' Transducer Extension Cable8-Pin 10' Transducer Extension Cable by Lowrance®. Connection Type: 8-Pin, Length: 10'. 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$44.99In Stock - Ships within 24 hrs
- Lowrance® - Transducer Adapter CableTransducer Adapter Cable 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, this product by Lowrance® will last a...Engineered to high standardsHigh-grade design delivers extended lifespan$20.99 - $99.00Availability Varies - Depends on Product Options
- Lowrance® - 9-Pin Plastic In-hull Mount Transducer9-Pin Plastic In-hull Mount Transducer 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$99.00Availability Varies - Depends on Product Options
- Lowrance® - ActiveTarget™ Plastic Transom/Trolling Motor Mount TransducerActiveTarget™ Plastic Transom/Trolling Motor Mount Transducer by Lowrance®. Measures: Depth/Temperature. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...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$1,099.00In Stock - Ships in 24 to 48 hrs
- Lowrance® - Bullet Plastic Transom Mount Transducer for HOOK² Fish FindersBullet Plastic Transom Mount Transducer for HOOK² Fish Finders by Lowrance®. Measures: Depth. Frequency: 200kHz. 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$43.99In Stock - Ships within 24 hrs
- Lowrance® - DSI Plastic Transom Mount Transducer with 20' CableDSI Plastic Transom Mount Transducer with 20' Cable by Lowrance®. Measures: Depth/Temperature. Frequency: 455/800kHz. The DSI DownScan Skimmer transducer comes with a built-in temp sensor, includes a 20-cable, mounting and bracket...Engineered to high standardsHigh-grade design delivers extended lifespan$89.00In Stock - Ships within 24 hrs
- Lowrance® - HDI Plastic Transom Mount TransducerHDI Plastic Transom Mount Transducer 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, this product by Lowrance® will...Engineered to high standardsHigh-grade design delivers extended lifespan$132.99 - $259.00Availability Varies - Depends on Product Options
- Lowrance® - Hybrid Dual Imaging™ Plastic Transom Mount Transducer with 20' CableHybrid Dual Imaging™ Plastic Transom Mount Transducer with 20' Cable by Lowrance®. Measures: Depth/Temperature. Frequency: 83/200/455/800kHz. Frequency: 455/800 kHz. The power of two award-winning technologies - Broadband Sounder PLUS...Engineered to high standardsHigh-grade design delivers extended lifespan$129.00In Stock - Ships within 24 hrs
- Lowrance® - Plastic Ice TransducerPlastic Ice Transducer 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 deliver great quality...Engineered to high standardsHigh-grade design delivers extended lifespan$78.99 - $79.00Availability Varies - Depends on Product Options
- Lowrance® - Plastic Transom Mount TransducerPlastic Transom Mount Transducer 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 deliver...Engineered to high standardsHigh-grade design delivers extended lifespan$64.00 - $184.40Availability Varies - Depends on Product Options
- Lowrance® - Plastic Trolling Motor Mount TransducerPlastic Trolling Motor Mount Transducer 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, this product by Lowrance® will...Engineered to high standardsHigh-grade design delivers extended lifespan$79.00 - $89.00Availability Varies - Depends on Product Options
- Lowrance® - SplitShot Plastic Transom Mount Transducer for HOOK² Fish FindersSplitShot Plastic Transom Mount Transducer for HOOK² Fish Finders by Lowrance®. Measures: Depth. Frequency: 200/455/800kHz. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...Supports High CHIRP/200kHz and DownScan Imaging™ (455/800kHz)Wide-angle CHIRP provides double the sonar coverage of most fish finders$88.99In Stock - Ships within 24 hrs
- Lowrance® - StructureScan™ 3D Plastic Transom Mount TransducerStructureScan™ 3D Plastic Transom Mount Transducer by Lowrance®. Measures: Depth. Frequency: 50/200/455kHz. StructureScan 3D gives freshwater and saltwater anglers a unique, three-dimensional view of fish, structure and bottom...StructureScan™ 3D is powered by a multi-beam sonar technology that produces revealing images with stunning detail by converting scans of underwater terrain and fish-holding structure into high-resolution, 180 Degree, three-dimensional viewsView 3D images from any angle with ScanTrack™ pan-tilt-rotate control using on-screen touch commands and easy-to-use, preset viewing positions$439.00In Stock - Ships within 24 hrs
- Lowrance® - StructureScan™ 3D Stainless Steel External Thru-hull Mount Transducers with 30' Cable, PairStructureScan™ 3D Stainless Steel External Thru-hull Mount Transducers with 30' Cable, Pair by Lowrance®. Measures: Depth. Frequency: 50/200/455kHz. Quantity: 2. StructureScan 3D gives freshwater and saltwater anglers a unique,...Engineered to high standardsHigh-grade design delivers extended lifespan$2,649.00In Stock - Ships within 24 hrs
- Lowrance® - StructureScan™ HD Plastic Transom Mount TransducerStructureScan™ HD Plastic Transom Mount Transducer 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, this product by...Engineered to high standardsHigh-grade design delivers extended lifespan$249.00 - $299.00Availability Varies - Depends on Product Options
- Lowrance® - StructureScan™ Stainless Steel External Thru-hull Mount Transducer with 30' CableStructureScan™ Stainless Steel External Thru-hull Mount Transducer with 30' Cable by Lowrance®. Measures: Depth/Temperature. Frequency: 455/800kHz. Accommodates Deadrise: 0° - 12°. Quantity: 1. The StructureScan HD Thru-Hull...StructureScan HD single Stainless Steel Thru-hull with high speed fairing blockElements for SideScan (left and right) as well as DownScan$879.00In Stock - Ships within 24 hrs
- Lowrance® - TotalScan™ Plastic Transom Mount TransducerTotalScan™ Plastic Transom Mount Transducer by Lowrance®. Measures: Depth/Temperature. Frequency: 83/200/455/800kHz. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...All-in-one transducer featuring Broadband, CHIRP, StructureScan HD and DownScan Imaging™Supports 83/200kHz Broadband sonar frequencies$119.95 - $329.00Availability Varies - Depends on Product Options
- Lowrance® - Transom Transducer Mounting HardwareTransom Transducer Mounting Hardware 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 deliver...Engineered to high standardsHigh-grade design delivers extended lifespan$11.49 - $55.99Availability Varies - Depends on Product Options
- Lowrance® - TripleShot Plastic Transom Mount Transducer for HOOK² Fish FindersTripleShot Plastic Transom Mount Transducer for HOOK² Fish Finders by Lowrance®. Measures: Depth/Temperature. Frequency: 200/455/800kHz. This product is made of high-quality materials to serve you for years to come. Designed using...Engineered to high standardsHigh-grade design delivers extended lifespan$165.99In Stock - Ships within 24 hrs
- Humminbird® - MEGA Down Imaging+ Plastic Transom Mount TransducerMEGA Down Imaging+ Plastic Transom Mount Transducer 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$240.11 - $300.11In Stock - Ships within 24 hrs
- Humminbird® - MEGA Down Imaging+ Plastic Trolling Motor Mount TransducerMEGA Down Imaging+ Plastic Trolling Motor Mount Transducer 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...Engineered to high standardsHigh-grade design delivers extended lifespan$240.11 - $300.11In Stock - Ships within 24 hrs
- Humminbird® - MEGA Side/Down Imaging Plastic External Thru-hull Mount TransducerMEGA Side/Down Imaging Plastic External Thru-hull Mount Transducer by Humminbird®. Measures: Depth/Temperature. Frequency: 83/200/455/800kHz and 1.2 MHz. This product is made of high-quality materials to serve you for years to come....Engineered to high standardsHigh-grade design delivers extended lifespan$338.33 - $553.01Availability 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.