Teledyne Webb Research designs and manufactures scientific instruments for oceanographic research and monitoring. Major product lines include profiling floats, gliders and moored acoustic sources. The APEX (Autonomous Profiling Explorer) float tracks subsurface currents and returns profile data from 2000m depth. The autonomous Slocum Glider is a versatile, long endurance AUV driven by buoyancy change, it has no propeller. Moored underwater sound sources serve as turnkey systems, complete with projector, signal generator, programmable controller, pressure housing and batteries.