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With its rugged construction and excellent price-to-performance ratio, the AST44LP is a great solution for low pressure measurement in intrinsically safe areas. The AST44LP series is commonly utilized for low pressure applications including tank level monitoring by threading the sensor into the bottom of a tank or chemical tote.  Additionally, the pressure transducer is an excellent solution for vapor pressure monitoring; it can be configured with a bi-directional output signal to monitor any vacuum pressure generated in the system.


  • Class I Div 1 Intrinsically Safe Groups C, D when installed with an approved barrier 
  • ATEX / IECEx: Class I Zone 0 Exia IIB T4 Ga (Ta = -40°C to +80°C) 
  • High Strength Stainless Steel Construction 
  • No Internal O-rings 
  • Wide Operating Temperature 
  • Pressures from 0-1 to 0-15 PSI 
  • Low Static and Thermal Errors 
  • Unparalleled Price and Performance 
  • Compatible with Wide Variety of Liquids and Gases 

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

Product Type Features

  • Sensor Type  Intrinsically Safe Pressure Transducer

  • Type  Absolute, Bi-Directional, Gage

Electrical Characteristics

  • Supply Voltage (V) 10 – 28

  • Electrical Connection  6 Pin Bendix PT06A, Cable 10 ft, Cable 2 ft, Cable 4 ft, Cable 6 ft, Deutsch DT04-3P, Deutsch DT04-4P, DIN 43650A, M12x1, Mini-DIN 43650C

Body Features

  • Port Material  316L, Alloy C276

  • Pressure Port/Fitting  1/2 MNPT, 1/4 FNPT, 1/4 MNPT, 1/8 MNPT

Usage Conditions

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


  • Pressure Range  0-1 to 15psi

  • Output/Span  1–5V, 1–6V, 4–20mA

  • Accuracy  ±0.25% FSO

  • Overpressure  2X, Min


  • Options  Conduit With Cable, Increased Proof Pressure, SIL2, Snubber

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