The Garmin Descent T2 Transceiver is a compact and durable device designed for serious divers. It monitors tank pressure and supports diver-to-diver messaging when paired with a compatible Descent Mk3i dive computer. With a battery life of up to 100 hours and a 300 bar (4351 psi) pressure rating its built to perform in tough underwater conditions up to 200 meters deep. Its wireless range extends up to 10 meters for tank data and up to 30 meters for messaging.