GARMIN GSD 26 CHIRP IPX7 Digital CHIRP Professional Sonar Module, 25 to 210 kHz, 25 to 3000 W|010-00958-00

GARMIN GSD26 010-00958-00, BB DIGITAL REMOTE SOUNDER, 300to3kw selectable power

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The GSD 26 digital sonar ushers in the next evolution of sportfishing technology, providing unrivaled target separation at far greater depths than traditional sonar.

Discover Spread Spectrum Clarity

For serious deep-sea sportfishing, the GSD 26 takes high-definition targeting to a whole new level. With a compatible transducer, the GSD 26’s Spread Spectrum technology scans on multiple frequencies at one time, returning vast amounts of data to the receiver. As a result, you can expect precise, shallow-water-like target separation at much greater depths – up to 10,000 ft (3,000 m).

A traditional fixed frequency mode allows you to manually adjust frequencies from 25 kHz to 210 kHz for enhanced targeting of specific fish species. You can also adjust transmit power from 300 W to 3 kW for even more control over your sonar returns.

Get Two Sonars in One

The GSD 26’s dual-transceiver design allows for simultaneous and independent transducer operation. You have complete control over the data you see on your compatible Garmin chartplotter, which easily connects to the GSD 26 over the Garmin Marine Network™.

GSD 26: Serious sonar. For serious sportfishing

Physical & Performance:

Unit dimensions, WxHxD: 14.28″ x 10.79″ x 3.97″ (36.26 x 27.40 x 10.08 cm)

Weight: 11.25 lbs

Waterproof: yes (IPX6)


Frequency: Manually adjustable, from 25 kHz to 210 kHz

Transmit power: Selectable, from 300 W to 3 kW

What’s in the Box:

GSD 26

Power cable

Marine network cable (6 ft)

Mounting hardware

software update SD card


Additional information

Weight 13 lbs

Item Name

CHIRP Professional Sonar Module








10.8 in W x 3.9 in D x 14.7 in H


25 to 210 kHz

Maximum Depth

10000 ft

Transmit Power

25 to 3000 W

Waterproof Rating


Temperature Rating

5 to 158 deg F

Voltage Rating

10 to 35 V

Amperage Rating

10:00 AM

Power Consumption

100 W


11.37 lb