GSD™ 28 Sonar Module
Garmin
GSD™ 28 Sonar Module
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Enjoy flexible payments for up to 24 months.
THE DEPTHS. REVEALED.
See what’s down there. Catch what’s down there. Take your sport fishing to extreme depths with a high-powered sonar module with the features you need to improve your chances for success.
ENGINEERED FOR OFFSHORE SPORT FISHING
SEE SONAR FASTER WITH GARMIN RAPIDRETURN™ TECHNOLOGY
CRISP AND CLEAR FISH TARGETS WITH xCHIRP TECHNOLOGY
EXCELLENT TARGET SEPARATION WITH xCHIRP TECHNOLOGY1
GREATLY REDUCE WAVE AND SWELL FROM BOTTOM RETURNS WITH HEAVE COMPENSATION2
WHAT YOU'LL LOVE
GARMIN RAPIDRETURN SONAR
This high-performance technology provides our fastest deep-water scrolling sonar with 2 to 6 times the ping rate1 of our GSD™ 26 sonar. This allows captains to make fast and informed decisions based on what is below their boats.
xCHIRP TECHNOLOGY
Easily distinguish bait from sport fish with our clearest traditional sonar fish arches and excellent target separation. Get smooth bottom returns and precise targeting at extreme depths1.
HEAVE COMPENSATION
When the seas get rough, use the MSC™ 10 external satellite compass (sold separately) to greatly reduce wave and swell from your sonar returns.
SUPERCHARGED SONAR
COMPATIBILITY
TRANSDUCER SUPPORT
This sonar module is compatible with a wide range of Garmin and AIRMAR® transducers (sold separately).
RETROFITTING
The GSD 28 module is ideal for retrofitting to boats with existing bare wire transducers.
PERFORMANCE
SONAR POWER
GSD 28 can output 300 watts to 3 kW at extreme depths1.
CHIRP SUPPORT
The module supports dual-channel CHIRP (up to 3 kW per channel).
OPERATION RANGE
The GSD 28 sonar module can operate in the 25 to 250 kHz frequency range1.
BUILT TO LAST
GSD 28 is rated for harsh marine environments and water-resistance with an IPX7 rating.
SIZES & DIMENSIONS
WHAT'S IN THE BOX
FEATURES
FEATURES
SPECIFICATIONS
SPECIFICATIONS
DOCUMENTATIONS
SHIPPING & DELIVERY
- Free shipping on orders over RM300 (West Malaysia only)
- Delivery time: West Malaysia 2–5 business days · East Malaysia 3–10 business days · Singapore 5–14 business days
- Processing time: Orders are processed Mon–Fri (excl. public holidays); allow 1–2 business days before dispatch
- We ship to: All states in Malaysia and Singapore (international shipping not yet available)
- Store pickup available at our Klang showroom — you'll be notified by email/SMS when your order is ready
- Pre-order items typically take 4–6 weeks depending on supplier and customs timelines
- Tracking: A tracking number is sent via email/SMS once your order ships
For full details, please refer to our Shipping Policy.
RETURNS & REFUNDS
- Report within 48 hours of receiving your order if the item is damaged, defective, or incorrect
- Eligible returns: Item must be unused, in original packaging, with photo/video evidence provided
- Not eligible: Pre-order items, misuse/negligence damage, and clearance/sale items (unless defective)
- Refunds: Issued as store credit by default (or original payment method); processed in 7–14 business days after inspection
- Exchanges: Available for defective or incorrect items, subject to stock availability
- Return shipping is the customer's responsibility — use a trackable courier
- To start a return, contact us with your order number and photos: info@boatyardmalaysia.com / +60 19-201 8832
For full details, please refer to our Return & Refund Policy.