available many model of current meter, subject to customer’s requirement. Data collection is normally self-recording or direct reading. Measurement can be selected either one layer or profile (Acoustic Doppler Current Profiler – ADCP)

Used to measure and record changes in sea level over time. Installed at various locations along coastlines or in bodies of water, tide gauges track the height of the water surface relative to a fixed reference point, typically a benchmark on land.