The S4 Current Meter may be used in any body of fresh or salt water, and can be deployed up to 6,000 meters deep. The S4 can be configured for water column profiling and wave measurements. It is particularly useful (1) in wave zones where its excellent vertical cosine response is needed; (2) in low current regimes where exceptional stability and resolution are needed; (3) in very high flow regimes where low drag and lack of moving parts permit practical deployment without concern for fragility; (4) for long deployments where memory capacity and user programmability are needed.

The S4 Current Meter utilizes a RS-232 serial interface for data transmission by hardwire cable link of up to 1,000 meters. The Model S110A RS-232 serial interface assures compatibility with most data telemetry systems and permits downloading of data at speeds to 57K baud. Options are available for a number of interfaces, including analog and RS-485.

As a system, the S4 can provide real-time data display either by hard wire, radio telemetry or satellite link to a base station.

The versatility, size and reliability of the S4 has been consistently proven in varied applications including: polar applications (through the ice deployment), sediment transport, outfall and plume dispersion modeling, low flow internal wave studies, hurricane and typhoon monitoring.

For additional information on utilizing the S4 for wave measurements, see the S4 Options page and the Wave & Tide Gauge page.