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High-Performance Instruments, Sensors & Technologies for Exploring & Monitoring Subsea Environments
APEX Standard Autonomous ocean profiling float for long-duration water column monitoring
APEX Standard

Autonomous ocean profiling float for long-duration water column monitoring

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APEX Standard

APEX Standard Profiling Floats provide a mature platform for sustained oceanographic data collection across global deployments. Designed for autonomous vertical profiling, the system supports large-scale observing programs with established reliability in open-ocean conditions. The architecture enables flexible deployment options while maintaining consistency in long-duration sampling missions.

Built by Teledyne Webb Research (TWR), the APEX platform integrates configurable telemetry, adaptive mission control, and in-situ programmability to support evolving research requirements. With a strong operational history in global observing networks, the system is engineered for repeatable performance across diverse marine environments, including ice-adjacent and open-ocean regions.

Maximum Depth: 2000 meters
Controller: APF-11
Key Features: Ice avoidance; mission sequencing; adaptable sampling behaviors; in-situ mission updates; in-situ sensor sampling adjustment
Strobe: Optional
Hull: Aluminum (standard), carbon fiber (optional)
Communications/Telemetry: Iridium circuit-switched/RUDICS (standard), Iridium SBD (optional)
Energy: Alkaline batteries (optional), lithium primary non-rechargeable (standard)
Configuration Options: Air deployable; VOS package; ice avoidance; surface temperature; equatorial compensator; handles; shipping crates; molded crates
Sensors: CTD (Sea-Bird SBE-61, RBR Legato)