Garmin Descent T2 Transceiver Tank Pressure MonitoringDescent T2 Transceiver: Real Time Tank Monitoring and Communication Imagine every dive with seamless communication and tank monitoring all from your wrist. The Descent T2 transceiver, when paired with your compatible air integrated Descent dive computer, brings that experience to life. Advanced Tank Monitoring with SubWave Sonar Stay fully aware of your dive stats. With cutting edge SubWave sonar technology, you can track up to 8 tanks underwater,