GSD™ 25 Premium Sonar Module
GSD™ 25 Premium Sonar Module
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GSD™ 25 Premium Sonar Module
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"Upgraded to the LiveScope Plus, and it’s a total game-changer. The detail is unreal — you can see fish flick their fins and move through structure in real time. Absolutely worth every cent."
Mark H. – Queensland -
"The GLS 10 module connected perfectly with my GPSMAP 8410. Everything synced right away — no fuss, no errors. Clear readings and smooth live scanning even in rough water."
Shane D. – Western Australia -
"This tech is insane — I can actually see fish moving towards my lure. The Panoptix system gives me total control offshore. Feels like having underwater radar."
Emma L. – New South Wales
GSD™ 25 PREMIUM SONAR MODULE: 1kW CHIRP & Scanning Sonar Black Box
The GSD™ 25 Premium Sonar Module is a remote network solution that provides serious sport fishers with outstanding fishfinding and bottom tracking capabilities. This premium black box features **true dual-channel 1kW CHIRP** traditional sonar, plus **CHIRP ClearVü™ and SideVü™ scanning sonar**, delivering the clearest images on the water. It extends depth capability down to **5,000 feet (1,524 meters)**, allowing you to distinguish between small and closely spaced fish at key fishing depths.
TRUE DUAL-CHANNEL 1 KW CHIRP
CHIRP is the most sophisticated sonar technology available, and the GSD 25 provides true dual 1kW CHIRP, allowing you to optimize performance by adjusting CHIRP frequencies (low/medium, low/high, medium/high).
KEY SONAR & CLARITY FEATURES
- Dual-Channel CHIRP: Supports true dual 1kW CHIRP traditional sonar for maximum target resolution, clarity, and crispness.
- Scanning Sonar: Integrates CHIRP technology into ClearVü™ and SideVü™ scanning sonar for enhanced resolution, target separation, and clear images of fish and structure below and to the sides of your boat.
- Deepwater Capability: Provides reliable tracking and imaging down to **5,000 feet (1,524 meters)** (transducer dependent).
NETWORKING & TRANSDUCER FLEXIBILITY
The GSD 25 is designed to seamlessly integrate with your compatible Garmin Chartplotter via the Garmin Marine Network.
- **Garmin Marine Network:** Features one dedicated network port for high-speed data sharing with compatible Chartplotters (e.g., GPSMAP xsv combos and MFDs).
- **Transducer Ready:** Compatible with a wide range of dedicated Garmin and third-party transducers (sold separately) designed for simultaneous Traditional CHIRP, ClearVü, and SideVü operation.
- **Construction:** Built with a durable polycarbonate case and rated IPX7 water-resistant for harsh marine environments.
Inverell Boating Centre Expert Note:
The GSD 25 is ideal for vessels that need maximum depth capability (5,000 ft) combined with high-resolution scanning sonar, but whose Chartplotter does not have built-in "xsv" sonar capabilities. It requires a dedicated transducer optimized for both 1kW CHIRP and scanning technologies (e.g., GT51M series) and connects via a single Garmin Marine Network Port.
Specification in detail
Specification in detail
General & Physical
DIMENSIONS: 9.9" × 7.6" × 2.6" (251 mm × 192 mm × 66 mm)
WEIGHT: 1.7 lbs (0.77 kg)
WATER RATING: IPX7 (Submersible)
CASE MATERIAL: Polycarbonate
TEMPERATURE RANGE: From -15°C to 70°C
COMPASS SAFE DISTANCE: 30 cm (11.8 in.)
Sonar Capabilities
SONAR TYPE: Dual Channel 1kW CHIRP, ClearVü, SideVü
TRANSMIT POWER: 1 kW
MAXIMUM DEPTH: 5,000 ft (1,524 m)
TRADITIONAL FREQUENCIES: 50/200, 77/200, 83/200 kHz (Single/Dual CHIRP 40-250 kHz)
SCANNING FREQUENCIES: CHIRP 455/800 kHz & CHIRP 260/455 kHz (SideVü/ClearVü)
Power & Connections
POWER INPUT: 10-35 Vdc
MAXIMUM POWER USAGE: 27 W
FUSE REQUIREMENT: 4.0 A
GARMIN MARINE NETWORK PORTS: 1
Inverell Boating Centre Technical Summary: The GSD 25 is a lightweight (0.77 kg) and power-efficient black box, drawing a maximum of 27W. It is capable of high-power 1kW operation and features all three core sonar technologies (Traditional, ClearVü, SideVü) through a single network port, providing comprehensive sonar functionality for compatible Garmin Chartplotters.
Warranty / Availability of Repair Facilities & Parts
Warranty / Availability of Repair Facilities & Parts
AU Warranty / Availability of Repair Facilities & Parts
Garmin Warranty / Availability of Repair Facilities & Parts
On this page, Garmin customers in Australia will find detailed warranty information; information regarding availability of repair facilities and parts including for out-of-warranty service; other important details regarding repair or replacement of a Garmin product; and how to contact Inverell Boating Centre for further information.
On this page
- Limited Warranty
- Availability of Repair Facilities & Parts (Out of Warranty)
- Repair or Replacement of a Garmin Product
- Additional Resources
- Contact for Further Information
Limited Warranty
This warranty is provided by Garmin Australasia Pty Ltd.
Application of Australian Consumer Guarantees
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if they fail to be of acceptable quality and the failure does not amount to a major failure.
The benefits under this Limited Warranty are in addition to other rights and remedies under applicable law. Phone: 0417 159 205.
One-Year Consumer Products Limited Warranty
Non-aviation products are warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this period, Garmin Australasia will, at its sole option, repair or replace any components that fail in normal use at no charge for parts or labour (customer responsible for transportation).
Warranty Exclusions
- Cosmetic damage such as scratches, nicks, and dents.
- Consumable parts (batteries, etc.) unless damage occurs due to defects in materials or workmanship.
- Damage from accident, abuse, misuse, water, fire, or external causes.
- Service by non-authorised providers.
- Modifications or altered units without written permission.
- Damage caused by non-Garmin cables or accessories.
Garmin reserves the right to refuse warranty claims for products obtained or used in contravention of local laws. Map accuracy and completeness are not guaranteed.
Warranty Process
- Contact Inverell Boating Centre Support to request an RMA number.
Email: inverellboatingcentre.cwa@gmail.com
Phone: 0417 159 205
Provide your unit serial number, return address, and contact number.
- Ship the unit with RMA number to Garmin or Inverell Boating Centre.
INVERELL BOATING CENTRE
Attn: Warranty / Returns:
10a Swanbrook Rd,
Inverell NSW 2360,
Australia
Availability of Repair Facilities & Parts (Out of Warranty)
Garmin products include complex integrated components. Repairs of parts such as cracked screens or integrated bands may not be possible outside Garmin factory conditions. Therefore, facilities or spare parts may not always be available for repair of such components.
Where an out-of-warranty service is required, Garmin Australasia or INVERELL BOATING CENTRE may offer to sell a replacement unit or Garmin Refurbished product. This applies only to out-of-warranty service and not to consumer guarantees under the Australian Consumer Law.
Repair or Replacement of a Garmin Product
Australian Consumer Law Notice:
- Repair or replacement of goods capable of retaining user data may result in loss of that data.
- Goods presented for repair may be replaced with refurbished goods of the same type rather than repaired. Refurbished parts may be used to repair goods.
Additional Resources
- Parallel imports: accc.gov.au/buying-parallel-imports
- Proof of purchase: accc.gov.au/receipts-proof-of-purchase
- Identifying genuine business: accc.gov.au/identifying-a-genuine-business
Contact for Further Information
For all warranty or out-of-warranty enquiries, please contact:
INVERELL BOATING CENTRE
www.inverellboatingcentre.com
10a Swanbrook Rd, Inverell NSW 2360, Australia
Phone: 0417 159 205

Verified Customer Feedback
Excellent
4.8
/ 5
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Never Misses a Beat
The GSD 28 sonar module hasn’t skipped once. Tracks bottom at full throttle, even in heavy chop. I’ve used other brands, but Garmin is on another level.
Grant M. – Victoria
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They Helped Me Choose the Right Module
I had no idea which sonar box suited my setup. The Inverell Boating Centre team walked me through every option and helped me choose the perfect match for my ECHOMAP. Fantastic support!
Hannah L. – South Australia
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Picks Up Fish 300 Feet Down
Wasn’t sure what to expect, but the XR system blew my mind. Even in deep southern waters, I’m getting perfect readings. Great visibility and super clear imaging.
Jake F. – Tasmania
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