Water Level and Flow Sensors

AccuStage Water Level Sensor

Available in stainless steel or titanium construction, the NexSens AccuStage water level sensor provides highly accurate vented level measurements in surface or groundwater applications.


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AccuStage Water Level Sensor

PS1 Water Level Sensor

The OTT PS1 is an easy-to-use, easy-to-maintain pressure and level probe. It is completely self-contained and features a durable, corrosion-resistant stainless steel body.


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PS1 Water Level Sensor

600LS Water Level Sonde

The 600LS provides precision shallow vented level measurement, in addition to temperature and conductivity.


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600LS Water Level Sonde

Thalimedes Shaft Encoder Level Sensor

The float-operated Thalimedes shaft encoder, with integral data logger, is designed for continuous, unattended monitoring of water level.


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Thalimedes Shaft Encoder Level Sensor

Ultrasonic Water Level Sensor

The NexSens non-contact ultrasonic water level sensor mounts above the water and measures the time of travel for a sound wave to reflect and return to the sensor.


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Ultrasonic Water Level Sensor

Radar Level Sensor (RLS)

The OTT RLS, non-contact radar level sensor with pulse radar technology is ideal for monitoring in remote or hard to reach locations.


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Radar Level Sensor (RLS)

Compact Bubbler Sensor (CBS)

The Compact Bubbler Sensor (CBS) from OTT is an accurate, compact, and easy-to-use bubbler sensor for surface water level monitoring.


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Compact Bubbler Sensor (CBS)

Argonaut-SW Shallow Water System

Ideal for monitoring flows in small channels from 1-16 ft deep, the SW (Shallow Water) offers advanced Doppler performance for sites previously thought impossible to measure.


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Argonaut-SW Shallow Water System

Argonaut-SL Side Looking Systems

The SonTek Argonaut-SL is an advanced Doppler sonar for water velocity measurement in a horizontal layer.


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Argonaut-SL Side Looking Systems

Argonaut-ADV Autonomous System

The SonTek Argonaut-ADV is designed to measure water flow (velocity and direction) in shallow water environments and is built to withstand extreme conditions.


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Argonaut-ADV Autonomous System

Argonaut-MD Mooring Deployment Systems

The Argonaut-MD is designed to precisely measure current using Doppler technology on long term mooring deployments of up to 2 years.


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Argonaut-MD Mooring Deployment Systems

Argonaut-XR 3D Systems

The SonTek Argonaut-XR is an advanced Doppler sonar for three dimensional water velocity measurement.


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Argonaut-XR 3D Systems

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