Environmental Monitoring Equipment

Current Profiling: The self-contained Sentinel is Teledyne RD Instruments’ most popular and versatile Acoustic Doppler Current Profiler (ADCP) configuration.

By providing profiling ranges from 1 to 165m, the high-frequency Sentinel ADCP is ideally suited for a wide variety of applications. Thanks to Teledyne RDI’s patented Broadband signal processing, the Sentinel also offers unbeatable precision, with unmatched low power consumption, allowing you to collect more data over an extended period.

The lightweight and adaptable Sentinel is easily deployed on buoys, boats, or mounted on the seafloor. Real-time data can be transmitted to shore via a cable link or acoustic modem, or data can be stored internally for short or long-term deployments. The Sentinel is easily upgraded to include pressure, bottom tracking, and/or directional wave measurement.

    Datasheet:

Teledyne RDI's Sentinel ADCP Specifications

Sediment Sampling: The Van Veen grab is a lightweight sampler designed to take large samples in soft bottoms. Its long lever arms and the sharp cutting edges on the bottom of the scoops, enable it to cut deeply into the softer bottoms.

The weighted jaws, chain suspension, and doors and screens allow flow-through during lowering to the bottom and assure vertical descent where strong underwater currents exist. The relatively large surface area and the strong closing mechanism allow the jaws to excavate relatively undisturbed sediments. When the powering cable is slowly made taut, the chains attached at the top of the release exert great tension on the long arms extending beyond the jaws, causing them to lift, dip deeper into the sediment, and trap material as they tightly close.

Water Quality: Multi-parameter HydroLab H2O sonde capable of direct reading of C, T, D, pH, DO & Redox to a depth of 50m. Hydrolab water quality instruments are known for their excellent construction and reliability in the field. Accurate, reliable water quality data is displayed on the hand-held data unit, alternative logging to a PC is possible with serial data ports.

    Datasheet:

Hydrolab 4a Specifications

Water Sampling: The NIO plastic reversing water bottle was first designed at the National Institute of Oceanography (NIO) during the 1970s and still offers arguably the best sealing messenger operated sampling system. This bottle is used successfully today by leading marine and freshwater research organisations worldwide.