The Garmin Descent S1 Buoy connects a surface crew with divers in the Garmin SubWave sonar network. From the Garmin Dive app, the crew can monitor supported dive information, track each diver’s approximate range from the buoy and exchange preset messages. These functions require compatible Garmin dive computers paired with Descent T2 transceivers, which are not included.
Keep the surface crew connected
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Monitor the dive group: view information such as tank pressure and depth from compatible equipment. Automatic alerts can flag tank or depth-range issues to the surface crew.
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Exchange preset messages: use the Garmin Dive app to communicate with networked divers. Some compatible dive computers can receive messages but cannot send them.
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Support a group of up to eight divers: the SubWave network provides approximate diver-range tracking at distances of up to 100 metres from the buoy, subject to conditions.
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Provide a return reference: compatible networked divers can view their distance and direction back to the S1 Buoy.
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Review the dive after surfacing: networked divers can use the Garmin Dive app to see underwater heatmaps showing approximately where they explored.
SubWave communication and tracking depend on the signal path. Surface conditions, waves, chop, objects and diver position can obstruct the signal and reduce range.
Confirmed product details
| Diver network |
SubWave sonar; supports up to eight divers, subject to conditions |
| Diver tracking range |
Up to 100 metres from the buoy; approximate range, subject to signal conditions |
| Connection to the app |
Wi-Fi to a smart device running Garmin Dive; range up to 60 metres |
| Battery |
Rechargeable lithium battery; up to 15 hours of battery life |
| Weight |
2 lb |
| Construction and water rating |
Impact-resistant; IPX8 to 10 metres |
| Satellite systems |
GPS and GLONASS for use on the surface |
| Garmin part number |
010-02546-00 |
In the box
- Descent S1 Buoy
- Carrying case
- Charging/data cable
- Tether
- Documentation
Compatibility and care
Diver monitoring, messaging and return-to-buoy functions depend on compatible Garmin dive equipment. The required dive computer and Descent T2 transceiver are separate from this buoy package. Message capabilities vary by computer, including receive-only support on some models.
The surface crew uses the Garmin Dive app on a smart device connected to the buoy over Wi-Fi. GPS and GLONASS support is for the buoy at the surface; underwater diver tracking uses the SubWave sonar network.
Refer to the supplied Garmin documentation for setup, charging, operation and care instructions.
