ELSGP500S Strain Gauge Piezometer


RST Instruments


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Type of Instrument Extensiometric Piezometer

The Strain Gauge Piezometer is specifically designed to meet the rigorous environments encountered in level measurement applications and to provide repeatable, precision depth measurements. It is available with either a ported nose cap or a piezometer nose incorporating a sintered stainless steel porous filter. Ideal for small bore applications, and the ability to withstand rigorous environments encountered in ground and sea water depth measurements, the Strain Gauge Piezometer can also be used for dynamic pore pressure measurement applications. Highly reliable multi-stage transient* protection is standard for 4-20 mA and RS-485 output.


  • Ground water and surface water monitoring
  • Well monitoring
  • Percolation tests
  • Hydrostatic pressure
  • Site remediation
  • Deep aquifer measurement
  • Sea water depth
  • Drawdown
  • Dewatering
  • Dams
  • Slug tests
  • Accuracy: ±0.1% FS T.E.B.**
  • Standard Pressure Ranges: 0 – 1 m through 0 – 300 m
  • Compensated Temp. Range: -10°C to 80°C
  • Pressure Output: 4 to 20 mA
  • Level Range (user specified): Infinite between 0 to 3 through 0 to 900 ft. W

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