Current Meters:

• FSI 2D-ACM Shallow Water or Deep Water Current Meter - The 2D-ACM meter uses phase-shift technology to provide high-accuracy velocity measurement with excellent low-velocity resolution. The 2D-ACM is a compact, cost-effective meter with vector-averaged current speed and direction.
• FSI 3D-ACM Acoustic Current Meter - The accuracy of an acoustic current meter in a compact, cost-effective package. The meter uses Phase-Shift technology to provide high-accuracy velocity measurement with excellent low-velocity Resolution. The 3D-ACM is a compact, cost-effective meter providing three-axis velocity measurements in a defined free field.
• RDI Long Ranger Self Contained ADCP - Sentinel is RDI's best-selling ADCP™ (1000 Sentinels in 50 countries). Now there's Long Ranger, a Sentinel-inspired instrument for long range, long duration autonomous deployments - up to six months for long range profiling of up to 600 meters. Patented (and proven) signal processing techniques used in RDI's BroadBand ADCPs™ ensure the degree of reliability that gives the peace of mind you need in long-term, deepwater data collection programs.
• RDI Ocean Surveyor ADCP - The Ocean Surveyor family of ADCPs™ adds a new chapter to RDI's unique contribution to the worldwide open-ocean research fleet. More than 250 vessel-mounted ADCPs™ have been installed on vessels around the world. These ADCPs™ provide detailed maps of the distribution of water currents and suspended materials through the water column and along the ship's path. In real time, the ADCP™ is also used to aid in-situ decision making, to adapt field operations, and to understand current regime characteristics. The system is completed with our new VMDAS Software.