Garmin GSD 21 Remote Sounder

Garmin GSD 21 Remote Sounder

  • 500-Watt (RMS) Sounder Capability
  • For 2000 Series and 292/392/492 Series Chartplotters
  • Includes The New High-Dynamic Range Analog Sonar Receiver
Product Description
Add depth to your chartplotter view with the GSD 20 series remote sounders. The GSD 21, powerful analog sonar, Garmin's first digital sonar, is robust unit designed to operate with stand-alone chartplotters or integrate with the Garmin CANet and Marine Networks.The GSD 21 is a black-box sounder that provides fast Ultrascroll displays and 500-watt (RMS) sounder capability to 2000 series and 292/392/492 series chartplotters featuring the Garmin CANet bus. The GSD 21 will work with a serial connection to other Garmin plotters without the CANet connection, but will not offer Ultrascroll capability. The unit's all-new, high-dynamic range analog sonar receiver provides exceptional performance in water as shallow as one foot on down to depths of 1500 feet. It connects to a dual frequency transducer (50/200 kHz) for deep-water performance or a single frequency, dual beam width transducer (narrow/wide) for operation in shallow fresh water as well as deeper water. It provides 500 W transmit power with dual frequency transducer or 400 W with dual beam width transducer.

Garmin GSD 26 Brand New Includes One Year Warranty The Garmin GSD-26 features an improved digital sonar design with Spread Spectrum Sonar Technology for superioir target definition and also performs in deep-water. The system is dual frequency (25/210 kHz) capable and offers selectable transmit power (Selectable, from 300 W to 3 kW) for pin-point accuracy at depths of up to 10,000 ft (3,000 m). With up to 2,000 Watts of transmit power and a high-dynamic range receiver, the GSD 24 brings high-definition imaging to your compatible Garmin chartplotter. GSD-26
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Last updated: May 31, 2020 at 07:37 EST. Pricing information is provided by the listed merchants. is not responsible for the accuracy of pricing information, product information or the images provided. Product prices and availability is subject to change. Any price and availability information displayed on or other merchants at the time of purchase will apply to the purchase of the product. As always, be sure to visit the merchant's site to review and verify product information, price, and shipping costs. is not responsible for the content and opinions contained in customer submitted reviews.


Garmin GSD 21 Remote Sounder
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