Soil Instruments 4-20MA Piezometer

he 4-20mA Piezometer is designed for accurately measuring pore water pressures in fully or partially saturated soil and rock. The transducer is fitted with a sintered Stainless Steel filter disc and is available as a vented (gauge) piezometer or a non-vented (absolute) piezometer. The Piezometer is built from high quality 316 grade Stainless Steel and is fitted with a thermistor for temperature monitoring.The 4-20mA Piezometer is devised for pressure ranges from -50 to 3500 kPa.

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  • Accurate with excellent long term stability
  • Fitted with thermistor for temperature monitoring
  • Fast response to pressure changes
  • Advanced design prevents case stresses from affecting readings
  • Capable of measuring negative pore pressures to -50 kPa (absolute non-vented unit)


  • Manufactured from high grade 316 Stainless Steel for extended operation
  • Small diameter device
  • Hermetically sealed, ensures long working life of the instrument
  • Connecting cable is strong, screened and flexible


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