Garmin GSD 24 Digital Black Box Network Sounder

Upgrade your marine navigation and fishing experience with the Garmin GSD 24 Digital Black Box Network Sounder (010-00957-00).

This high-performance sonar system delivers superior target definition, deep-water detection, and ultra-clear imaging, compatible with Garmin GPSMAP® 4000–8000 series chartplotters.

Ideal for sportfishing, reef navigation, or monitoring hazardous terrain, the GSD 24 ensures precise underwater detail.

Black Box Sounder Key Features

• Improved digital sonar design for extraordinary target definition and deep-water performance
• Dual-frequency operation: 50 kHz and 200 kHz for versatile depth coverage
• Selectable transmit power: 600 W, 1 kW, or 2 kW (depending on transducer) for precision at up to 5,000 ft (1,500 m) depth
• High-dynamic range receiver for enhanced separation of underwater structures and fish targets
• IPX7 waterproof rating for reliable operation in marine environments
• Upgrade option for current GSD 22 users with included adapter
• Plug-and-play connectivity via Garmin Marine Network for ultra-fast screen updates and easy integration
• Compatible with GPSMAP® 4000, 5000, 6000, 7000, 8000 series chartplotters

Technical Specifications

• Dimensions: 10.85" L x 8.03" W x 3.22" H (27.56 x 20.40 x 8.18 cm)
• Weight: 4.22 lbs (1.9 kg)
• Transmit Power: 600 W, 1 kW, or 2 kW selectable
• Frequency: 50 kHz / 200 kHz
• Depth Capability: Up to 5,000 ft (1,500 m)
• Waterproof: IPX7 standard
• H3 – What’s Included in the Box
• Garmin GSD 24 Digital Black Box
• Upgrade adapter for GSD 22 users
• User manual / installation guide

Why Choose the Garmin GSD 24

The GSD 24 brings professional-grade sonar performance to recreational and commercial anglers alike. Its dual-frequency operation and selectable power provide unmatched detail in both shallow and deep water, while Garmin Marine Network connectivity ensures instant updates across your chartplotters. Rugged IPX7 construction guarantees durability in saltwater and harsh environments.

Applications

• Sportfishing: precise target separation and fish location
• Reef and underwater terrain navigation
• Deep-water bottom structure mapping
• Compatible with Garmin GPSMAP® 4000–8000 series

Designed for both serious anglers and navigation enthusiasts, the GSD 24 integrates seamlessly into your boat’s marine network for real-time sonar updates.

Whether upgrading from a GSD 22 or installing for the first time, you get accurate readings, deep-water performance, and reliable connectivity in a fully waterproof package.

Quick Guide (pdf)
Owner's Manual (pdf)
Brochure (pdf)

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.