Discover a deeper connection with the Descent S1 diver communication buoy. Using the SubWave sonar network this revolutionary buoy works with the Garmin dive ecosystem, enabling topside crew members to monitor and track their dive groups — as well as exchange preset messages with divers wearing a compatible dive computer paired with a Descent T2 transceiver. Networked divers can also see their distance and direction to the buoy for return-to-base reference1
KEY FEATURES
REMOTE DIVER MONITORING
Surface crew can monitor divers equipped with compatible dive computers paired with Descent T2 transceivers to keep track of the diver’s tank pressure, depth, distance and direction for up to eight divers on the Subwave sonar network. Automatic alerts can let topside crew know if there’s an issue with tanks or depth ranges below2
TWO-WAY MESSAGING
Via the Garmin Dive app, preset messages can be sent and received by topside crew connected to divers
wearing Descent T2 transceivers paired to compatible dive computers below, alerting divers if there’s a
situation, they need to know about1. In addition, the Descent S1 buoy extends the range of diver-to-diver
messaging while in the water1.
DIVER LOCATION TRACKING
Viewers at the surface can track the approximate range to each diver in the SubWave sonar network, up to
100 meters away from the Descent S1 buoy2
FIND MY BUOY
Divers on the network can see their distance and direction back to the Descent S1 buoy, giving them clear return-to- base reference and increased situational awareness while diving2.
POST-DIVE REVIEW
After surfacing, networked divers can sync and review their underwater heatmaps on the Garmin Dive smartphone app to see approximately where they were exploring.
RUGGED DESIGN
The sturdy, compact buoy weighs less than one kilogram, is impact-resistant and water-rated IPX8 to 10 meters.
LONG BATTERY LIFE
The rechargeable lithium battery gives up to 15 hours of battery life, letting you dive longer between recharges.
SECURE CONNECTIVITY
Wi-Fi® technology wirelessly connects the buoy to the Garmin Dive smart-device app within a range of up to 60 meters.
MULTI-GNSS SUPPORT
Multiple satellite systems (GPS, GLONASS and Galileo) aid signal reception in challenging environments.
LONG BATTERY LIFE
The rechargeable lithium battery gives up to 15 hours of battery life, letting you dive longer between recharges.
SECURE CONNECTIVITY
Wi-Fi®technology wirelessly connects the buoy to the Garmin Dive smart-device app within a range of up to 60 meters.
MULTI-GNSS SUPPORT
Multiple satellite systems (GPS, GLONASS and Galileo) aid signal reception in challenging environments.
Physical dimensions (W x H) 8.0” x 5.3” (203 x 135 mm)
Weight 981 g (2.2 lbs)
Battery type Internal rechargeable lithium-ion
Battery life 15 hours
Charging method Garmin proprietary clip charger cable with USB-C® connector
Connectivity BLUETOOTH®, Wi-Fi®, ANT® and SubWave technologies
Sensor GPS, GLONASS and Galileo
Water rating IPX8 to 10 m
Operating and storage
Temperature range From -20 to 60°C (from -4 to 140°F)
Underwater temperature range From 0 to 40°C (from 32 to 104°F)
Charging temperature range From 0 to 45°C (from 32 to 113°F)
Wireless frequency and transmit power 2.4 GHz @ 19.16 dBm maximum
Surface transmission range for Wi-Fi®technology Up to 60 m (197 ft.)
Underwater transmission range for SubWave sonar technology Up to 100 m (328 ft.) line of sight
GARMIN DIVE APP
DIVER MESSANGING:
Use the dive app’s messaging view page and paired Descent S1 diver communication buoy to send and receive preset messages via compatible dive computers on the networked divers’ wrists paired to Descent T2 transceivers. You can direct a message to a specific diver or send a group message to all of them1
SEE CRITICAL INFORMATION:
When using the SubWave sonar network with the Descent S1 diver communication buoy and compatible dive computer paired with a Descent T2 transceiver, the Garmin Dive app lets topside crew view real-time information (tank pressures, current depth, battery status, last message sent and more) for each diver
detected by the buoy1
RADAR VIEW:
Use the app’s radar view tracking feature with a Descent S1 diver communication buoy and compatible dive computer to see relative locations for up to eight divers equipped with the Descent T2 transceiver. All positions are updated in real time. And diver icons on the display may be overlaid with name,
depth, pressure or other relevant data1