Dive Alert Plus DV2 Scuba Signaling Device

Dive Alert Plus is a specially designed, small, lightweight pneumatic signaling device that uses quick connect hose fittings to become an integrated part of a diver’s BCD power inflator. Installation is easy, and does not require any modification of your other equipment. Dive Alert Plus uses a small amount of air from your scuba cylinder to produce a loud sound that’s audible both on the surface and underwater.
 
Compatible with:

Aqua Lung AirSource
Aeris AirLink
Mares AirControl
Oceanic Air XS