Garmin GSD™ 25 Premium Sonar Module
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Garmin GSD™ 25 Premium Sonar Module Product Description
Unlock Crystal-Clear Underwater Insights with Advanced Sonar Technology
Imagine gliding across deep offshore waters, spotting schools of trophy fish and pinpointing structure with razor-sharp precision. The premium sonar module delivers exactly that, serving as a powerful remote network add-on for serious anglers chasing big game. By integrating high-output dual-channel sonar alongside sweeping scanning capabilities, it paints a vivid picture of what's lurking below—even at extreme depths. This isn't basic echo sounding; it's a game-changer for discerning individual fish amid tight packs, helping you drop lines right where they bite.
What sets this module apart is its ability to blend traditional sonar prowess with innovative scanning views. You'll see bottom contours, wrecks, and bait balls in stunning detail, making every trip more productive and less guesswork.
Mastering CHIRP: The Science Behind Superior Fishfinding
At its core lies dual-channel 1kW CHIRP technology—a step beyond conventional sonar. CHIRP, or Compressed High-Intensity Radiated Pulse, sweeps across a broad frequency range in a single transmission. This results in exceptional target separation, where small fish stand out from larger ones, and closely grouped targets don't blur into noise. Tune it for low/medium, low/high, or medium/high ranges to match conditions, whether probing shallow reefs or plunging to 5,000 feet in open ocean.
Enhanced Scanning: ClearVü and SideVü for 360-Degree Awareness
Pairing CHIRP with ClearVü (downward scanning) and SideVü (sideways scanning) creates photo-like images of fish arches, ledges, and suspended bait. These views extend hundreds of feet to each side and straight down, revealing hidden hotspots traditional sonar might miss. A single compatible transducer handles all modes, simplifying your setup while maximizing coverage. Anglers report easier navigation around drop-offs and quicker hookups during drifts.
Real-World Edge for Offshore Adventures
For sportfishermen targeting pelagics like tuna, billfish, or snapper, this module shines in demanding scenarios. Its robust power punches through thermoclines and murky water, maintaining clarity where lesser units fade. Network it seamlessly with multifunction displays for split-screen views—traditional sonar on one side, scanning on the other. Users rave about spotting bottom-huggers near wrecks or marking wrecks teeming with life, turning exploratory outings into limit-filling hauls.
Built tough for marine life, the polycarbonate housing withstands harsh elements with an IPX7 waterproof rating, operating reliably from chilly 5°F mornings to sweltering 158°F afternoons. Compact dimensions slip into tight console spaces without hassle.
Detailed Specifications at a Glance
| Specification | Details |
|---|---|
| Dimensions | 9.9" L x 7.6" W x 2.6" D |
| Transmit Power | 1kW |
| Frequency Support | Traditional: 50/200, 77/200, 83/200 kHz; CHIRP: 40-250 kHz (single/dual); SideVü/ClearVü: CHIRP 260/455/800 kHz |
| Max Depth | 5,000 feet |
| Input Voltage | 10-35 VDC |
| Operating Temperature | 5°F to 158°F |
| Waterproof Rating | IPX7 |
| Material | Polycarbonate |
| Connections | 8-pin and 12-pin transducer ports; Garmin Marine Network |
Kit includes right-angle power and network cables (6 ft each), plus mounting hardware for straightforward integration.
Seamless Integration for Peak Performance
Connect via the Garmin Marine Network to compatible chartplotters, powering up a suite of sonar views without cluttering your helm. Opt for Garmin marine transducers optimized for these frequencies to unlock full potential—ensuring crisp HD-ID echoes alongside scanning sweeps. Power draw stays efficient at 27W max, fitting most onboard systems.
Frequently Asked Questions
What makes CHIRP sonar better than traditional single-frequency sonar?
CHIRP transmits across a range of frequencies simultaneously, delivering superior resolution and target separation. This means clearer images of individual fish and structure, even in challenging depths.
How deep can this sonar module detect targets?
It reaches up to 5,000 feet, ideal for deep-water offshore fishing where big game hides.
Does it support both downward and sideways scanning?
Yes, with CHIRP ClearVü for downward views and SideVü for sideways scans, providing comprehensive coverage using one transducer.
Is this module suitable for saltwater environments?
Absolutely—its IPX7 waterproof rating and wide temperature range handle harsh marine conditions with ease.
What transducers work best with this unit?
Garmin-designed transducers supporting 8-pin or 12-pin connections and the specified frequencies maximize performance across all sonar modes.
Can I customize frequency settings?
Yes, dual-channel CHIRP lets you select low/medium, low/high, or medium/high pairings to optimize for your fishing style and water conditions.
What's included for easy installation?
Right-angle power and network cables (6 feet), mounting hardware, and documentation get you up and running quickly.
The GSD 25 premium sonar module is a remote network solution that provides outstanding fishfinding and bottom tracking capabilities. It offers dual-channel 1 kilo Watt CHIRP, plus Garmin CHIRP ClearVü ™ and Garmin CHIRP SideVü ™ sonar scanning for the clearest scanning images on the water. The images sent to your compatible Garmin chartplotter have target details so clear and precise, you can actually distinguish between small and closely spaced fish at key fishing depths all the way down to 5,000 feet. CHIRP is the most sophisticated sonar technology available for use by the fishing and boating public. CHIRP is an acronym for Compressed High-Intensity Radiated Pulse. What it means to you is much better target resolution, clarity and crispness than any other sonar system. Having Garmin true dual 1 Kilo Watt CHIRP as your traditional sonar allows you to adjust CHIRP frequencies to low or medium, low or high, medium or high to further optimize your sonar performance. Adding CHIRP technology to ClearVü and SideVü scanning sonar further enhances the resolution, target separation and clarity of the sonar images of fish and structure that pass below and to the sides of your boat. Built-in to our new GPSMAP xsv combos and GSD 25 Premium Sonar Module, it uses 1 transducer for traditional CHIRP HD-ID sonar and CHIRP ClearVü and SideVü scanning sonar.
Garmin 100115900 Attributes
- Size: 9.9 Inch Length X 7.6 Inch Width X 2.6 Inch Depth
- Frequency: 50 kHz
- Input Voltage: 10 To 35 Volt
- Temperature Range: 5 Degree Fahrenheit To 158 Degree Fahrenheit
- Material: Polycarbonate
- Waterproof: IPX7 Rating Waterproof
- Includes: With Right Angle Power Cable/ Right Angle Network Cable/ Mounting Hardware
Garmin 100115900 Features & Benefits
- Premium Remote Network Sonar Solution
- Provides Serious Sport Fishers Outstanding Fishfinding And Bottom Tracking Capabilities
- Helps Distinguish Between Small And Closely Spaced Fish At Key Fishing Depths
- Features True Dual-Channel 1 KW CHIRP, Plus CHIRP SideVü And ClearVü Scanning Sonar For The Clearest Images On The Water
- Depth Capability To 5,000 Feet
- Limited 2 Year Warranty
Garmin 100115900 Installation Instructions
Garmin 100115900 Warranties
Garmin 100115900 Technical Bulletins
GSD™ 25 Premium Sonar Module
The GSD 25 premium sonar module is a remote network solution that provides outstanding fishfinding and bottom tracking capabilities. It offers dual-channel 1 kW CHIRP, plus Garmin CHIRP DownVü and SideVü sonar scanning for the clearest scanning images on the water. The images sent to your compatible Garmin chartplotter have target details so clear and precise, you can actually distinguish between small and closely spaced fish at key fishing depths all the way down to 5,000 feet.For the serious offshore sportfisherman, this "one-box" remote network sonar solution provides outstanding fishfinding and depth sounder capabilities for vessels with networked MFD installations.
True Dual-Channel 1kW CHIRP
CHIRP is the most sophisticated sonar technology available for use by the fishing and boating public. CHIRP is an acronym for Compressed High-Intensity Radiated Pulse. What it means to you is much better target resolution, clarity and crispness than any other sonar system. Having Garmin true dual 1 kW CHIRP as your traditional sonar allows you to adjust CHIRP frequencies to low/medium, low/high, medium/high to further optimize your sonar performance. Transducer sold separately.
Clearest Scanning Sonar Images on the Water
Adding CHIRP technology to DownV resolution, target separation and clarity of the sonar images of fish and structure that pass below and to the sides of your boat. Built-in to our new GPSMAP xsv combos and GSD 25 Premium Sonar Module, it uses 1 transducer for traditional CHIRP HD-ID sonar and CHIRP DownVü and SideVü scanning sonar. Transducer sold separately.
Choose a Garmin Transducer
This sonar is so unique Garmin has developed their own proprietary transducers that are specially designed to work with the sonar to provide the very best performance.
Features:
- Offers dual-channel 1kW CHIRP
- SideVü and DownVü sonar scanning for the clearest images on the water
- Target detail so precise you can actually distinguish between small and closely spaced fish at key fishing depths
- Depth capability to 5,000 feet
Compatible Devices:
- GPSMAP® 8000 Glass Helm Series
- GPSMAP® 7400/7600 Series Displays
In The Box
- GSD 25
- Right-angle power cable (6 feet)
- Right-angle network cable (6 feet)
- Mounting hardware
- Documentation
Connections
- Transducer pin numbers: 8 Pin and 12 Pin
GSD 25 advanced sonar module is a long-range network solution that provides excellent fish finding and seafloor tracking functions. It provides dual-channel 1 kW CHIRP, as well as GarminCHIRPClearVü and GarminCHIRPSideVü sonar scanning to obtain the clearest scanned image on the water. The images sent to a compatible Garmin chartplotter have clear, precise target details, and you can actually distinguish small and close-up fish within the critical fishing depth (up to 5,000 feet). A true dual channel 1 kW CHIRP CHIRP is the most sophisticated sonar technology available to the fishing and boating public. CHIRP is an acronym for Compressed High Intensity Radiation Pulse. This means that you can achieve the target resolution, clarity and clarity better than any other sonar system. When using Garmin's true dual 1 kW CHIRP as a traditional sonar, the CHIRP frequency can be adjusted to low/medium, low/high and medium/high to further optimize the sonar performance. The sensor is sold separately. The clearest scanned sonar image on the water. CHIRP technology is added to the ClearVü and SideVü scanning sonar, which further improves the resolution, target separation and clarity of the fish and structure sonar images passing under and from the side of the hull. Built into our new GPSMAP xsv combination and GSD 25 Premium sonar module, it uses 1 sensor for traditional CHIRP HD-ID sonar and CHIRPClearVü and SideVü scanning sonar. The sensor is sold separately.
Garmin GSD™ 25 Premium Sonar Module Related Products
Garmin 12-Pin Transducer Y-Cable Port/Starboard - 10mFrequently Asked Questions (FAQ) About Garmin GSD™ 25 Premium Sonar Module
Who is the Garmin?How to describe Garmin GSD™ 25 Premium Sonar Module?
What is the working frequency of the product?
What is the material of Garmin GSD™ 25 Premium Sonar Module?
What is the size?
Is this product waterproof?
Who is the Garmin?
How to describe Garmin GSD™ 25 Premium Sonar Module?
- The GSD 25 premium sonar module is a remote network solution that provides outstanding fishfinding and bottom tracking capabilities.
- It offers dual-channel 1 kW CHIRP, plus Garmin CHIRP DownVü and SideVü
- 1 kW CHIRP and Garmin CHIRP DownVü and SideVü
- Dual-channel sonar
- Remote network solution
The Garmin GSD 25 is the ultimate sonar module. It includes dual-channel 1 kW CHIRP, plus CHIRP SideV& 252; and DownV& 252; scanning sonar for a complete remote network sonar solution. The GSD 25 is designed for use with the following Garmin echoMAP models: echoMAP 50s, echoMAP 50dvx, echoMAP 50dv, echoMAP 50sv
What is the working frequency of the product?
- The GSD 25 premium sonar module is a remote network solution that provides outstanding fishfinding and bottom tracking capabilities.
- It offers dual-channel 1 kW CHIRP, plus Garmin CHIRP DownVü and SideVü
- 1 kW CHIRP and Garmin CHIRP DownVü and SideVü
- Dual-channel sonar
- Remote network solution
- 1 kW CHIRP sonar for extreme accuracy
- SideV& 252; and DownV& 252; scanning sonar for complete coverage
- Remote network sonar solution with dual-channel capability
- Includes free lifetime map updates
- 1 kW CHIRP sonar for long-range detection
- CHIRP SideV& 252; and DownV& 252; scanning sonar for close-in work
- Dual network capability - use the built-in Wi-Fi to connect to a wireless network or connect directly to a computer via USB cable
What is the material of Garmin GSD™ 25 Premium Sonar Module?
What is the size?
Is this product waterproof?
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Garmin GSD™ 25 Premium Sonar Module Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Garmin |
| Weight: |
3.4 lb |
| Product Brochure: |
Garmin GSD™ 25 Premium Sonar Module User Reviews
Garmin GSD™ 25 Premium Sonar Module Shipping & Return
| Shipping Weight: |
3.4 lb |
|---|---|
| Box Sizes: |
5.00 (h) x 12.00 (w) x 14.00 (l) |
| Cubic Feet: |
840.0 |
| Returnable: |
Yes |
| P65: |
Yes |
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