Dive Alert Plus DV2
Dive Alert Plus DV2, Compatible with: AquaLung AirSource (Including AirSource 3 QD), Mares Air Control, Oceanic Air XS and Aeris AirLink
Below and Above water signaling.
Extremely Loud (Air) 132db, Button Operation, works with as little as 100psi, 1-Mile audible range.
Underwater sound simulates a Quacking sound.