Garmin Descent MK3i 51mm Dive Computer + T2 Transmitter

Featuring SubWave sonar-based communication and diver monitoring, this advanced, air-integrated1 dive computer and smartwatch comes with Garmin innovations to help prepare you to make the most of your diving experience — plus multisport training and smart features for your active life out of the water. Pair with Descent T2 Transmitter to monitor tank pressures and depth for up to 8 divers, and exchange preset diver-to-diver messages.