Profile: Interocean Systems, Inc. is a manufacturer of oceanographic & environmental equipment and systems. Our product line includes transducers, releases transponder, current meters, buoy systems, winches and tide gauges. Our e S4A instrument family is a continuing evolution in a series of proven multi-purpose hydrographic data acquisition products that are continuously upgraded using the latest devices and techniques in microprocessor based instrumentation. The versatile S4A instrument configurations are designed to provide direct measurements of current speed and direction, directional wave, density, sound velocity, turbidity, chlorophyll, and other parameters with high precision. The S4A is a truly unique instrument for water current sensing, designed to directly measure the true magnitude and direction current motion in any water environment using two pairs of titanium electrodes located symmetrically on the equator of the sensor. Our data telemetry systems are modularly designed for unique applications and environments, either directly connected or telemetry linked where direct cable connection may not be possible or practical. These systems consist of one or more remote monitoring stations and central base data acquisition stations. The sensors for the systems can be mounted virtually anywhere.