Track your every breath when you pair the DescentÄ T1 transmitter with compatible DescentÄ dive computer via SubWaveÄ sonar technology. This duo enables you to monitor your tank pressure, remaining air time and air consumption rate for multiple types of diving. Easily install Descent T1 on your high-pressure regulator port without the need for a hose. You can pair up to 5 transmitters with each Descent Mk2i dive computer, so you can dive with multiple tanks or see your buddyÀ™s air levels with additional equipment (sold separately) and required device paring.