Depth

Depth of water is measured by a non-vented strain gauge. A differential strain gauge transducer measures pressure with one side of the transducer exposed to the water and the other side exposed to a vacuum. Depth is calculated from the pressure exerted by the water column minus atmospheric pressure.

Factors influencing depth measurement in water include barometric pressure, density, and temperature. Calibration in the atmosphere zeros the sensor with respect to the local barometric pressure. A change in barometric pressure will result in errors unless recalibrated or compensated.

Featured Depth Products

6920 V2-2 Multi-Parameter Water Quality Sonde

Compact Sonde for Unattended Monitoring

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Pontoon Vertical Profiling System

Ideal for Ponds, Lakes, Reservoirs, and Certain Coastal Applications

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ProDSS

Digital Sampling System multiparameter​ handheld provides extreme flexibility. Meter Only.

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EXO2 Multiparameter Sonde

6-port Water Quality Sonde with Anti-fouling Wiper

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Buoy Vertical Profiling System

Designed for Coastal Applications or High Energy Environments

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