
A 20 ATM case with leakproof metal buttons — included: Recreational (single‑gas) and Advanced (multi‑gas, trimix & CCR) for technical diving.
Pair a SubWave T2 to each regulator and everyone's tank pressure is on your wrist — with your own air time remaining computed live from your breathing rate and depth.
Preset messages with your party and the boat. "Look at me", "Come to me", "Turn back" — for the buddy who can’t see you; "drop a tank" — for the boat captain.
For the moments hand signals can't reach: a buddy drifting out of sight, a diver who can't see your torch, the boat far above. Messages, air and live distance to every diver, carried between the T2 transceivers on your regulators — tap a mode to see what the wrist shows:

