July 2025 Scuba Diving Industry™ Magazine

INNOVATION Garmin’s Revolutionary SubWave™ Sonar Technology – by Gil Zeimer, ScubaStoryteller.com and Zeimer.com, San Rafael, CA

As a PADI diver since 1985, Gil has authored more than 300 scuba articles and newsletters that have appeared in over 25 magazines and websites. He looks forward to having his first book published this fall and presenting three seminars at DEMA 2025.

Garmin is committed to developing the world’s most innovative, highest quality, and easiest to use marine electronics the industry has ever known. I recently had the opportu- nity to interview one of its executives about a revolutionary new technology for Garmin’s dive products lineup.

rechargeable lithium battery that provides up to 15 hours of battery life for a weekend of diving, and it has a wireless technology range of up to nearly 200 feet (60 meters) away. “Garmin is focused on creating essential products de- signed to help keep divers safe. The groundbreaking De- scent S1 buoy adds game-changing communication, navigation, and safety capabilities between divers and their

surface crew, making it the next must- have piece for dive teams, charter op- erations, instructors, and more.” – Susan Lyman, Garmin Vice Presi- dent of Consumer Sales and Market- ing What was the “lightbulb” mo- ment behind it? Though Garmin has been develop-

How does the Descent ™ S1 buoy benefit both dive operators and divers? This compact, 7”-wide, 2-lb. diver communication buoy floats on the surface to provide a deeper connec- tion with SubWave ™ sonar technol- ogy.

The Descent S1 buoy enables the topside crew members to monitor up to eight divers, has an IPX8 water rating to 10 meters, a

Garmin’s New Descent S1

ing marine products for decades, we wanted to create a product that provides increased situational awareness,

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