The Lubell System 3300 is the world's most efficient Diver Recall System and Underwater Public Address System. The System 3300 has many uses including underwater movie production, recalling scuba divers to dive boat or sunken habitat, and homeland security for interrogating suspicious divers.
The System 3300 features four industry standard oscillating siren modes, as well as two non-oscillating tones, for signaling and recalling SCUBA divers. A noise canceling microphone is hardwired for high quality voice reproduction. The microphone push-to-talk switch overrides any siren signal for instant PA use. The radio input jack (3.5mm stereo) allows connection of two-way marine radio for underwater rebroadcast of voice transmissions only. For high quality reproduction of audio, please see Lubell System 3400 Diver Recall System.
The System 3300 is intended for permanent installation on military, commercial, and pleasure craft having 12 volt electrical systems. System may also be placed in Pelican case and powered from a standard 12 volt camera brick. Lubell Labs also offers a self-contained Complete Air And Water Sound System (CAWSS) that is very popular for portable applications including SCUBA instruction and underwater movie direction for blockbusters including James Bond Skyfall.