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With a differential pressure range as low as 0 to 5” water column (12.5mbar), this product can be used to measure flow across an orifice, differential across a filter, tank level, or gauge pressure. Using LVDT technology and AST’s advanced electronics, the AST5100 delivers accurate, repeatable measurements.


  • Accurate Low Pressure Measurement
  • Excellent Repeatability
  • Wide Range of Liquids and Gases including:  
  1.    Water
  2.     Natural Gas
  3.     Hydrocarbon Fuels
  4.     Air
  5.     Non-Corrosive Gases

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Type  Differential Pressure Transducer

  • Type  Differential

Electrical Characteristics

  • Supply Voltage (V) 10 – 28

  • Electrical Connection  M12x1

Body Features

  • Port Material  304, Aluminum, Loctite680, Ni-Span C, Nickel Alloy 52, Solder, Viton

  • Pressure Port/Fitting  1/8 FNPT

Usage Conditions

  • Operating Temperature -40 – 80 °C [ -40 – 176 °F ]


  • Pressure Range  0.18 to 7.22psi

  • Output/Span  0 – 5 V, 4 – 20 mA

  • Accuracy  ±1% FSO

  • Overpressure  Pressure Dependent

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