AST4900 High Purity Pressure Transmitter
This product has been retired.

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  • Accuracy: <±0.25% BFSL
  • High strength stainless steel construction
  • No silicone oil, internal O-rings or welds
  • Wide operating temperature range
  • Ranges up to 10,000 psi
  • Vacuum ranges available on request
  • Low static and thermal errors
  • Unparalleled price/performance ratio
  • Fully welded case provides rugged design
  • Compatible with wide range of gases and liquids
  • Suitable for high shock and vibration applications

The all stainless steel AST4900 pressure sensor is a competitively priced, high quality, media isolated pressure sensor intended for use in the measurement of gases and liquids compatible with stainless steel. This series of pressure sensors from AST4900 is suitable for high purity gas delivery systems and data loggers. AST4900 pressure sensors and transducers have been designed specifically for applications with demanding price and performance requirements.

AST4900 pressure sensors offer both millivolt and high level outputs. The high strength stainless steel sensing element is machined from a solid piece of stainless steel, resulting in construction that contains no silicone oil, no welds, and no internal O-rings. Measurements are available in gauge pressure covering ranges up to 10,000 PSI. The AST4900's long life and high performance make it ideal for applications needing high accuracy, excellent long-term stability, and trouble free operation.

Applications for the AST4900 Pressure Sensor

  • Gas pipeline instrumentation
  • Gas panels & manifolds
  • Test stands
  • Data loggers
  • Pressure instrumentation
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Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

AST Mini DIN Mating Connector
Mini DIN 43650C right angle mating connector (includes screw & gasket) for AST pressure switches
AST Bendix Mating Connector
Bendix 6-pin mate PT06A-10-6S-(SR) or MIL-C-26482 for AST pressure switches


Please consider these optional accessories.

AST NIST Traceable Certificate
5-Point NIST Traceable Certificate for new AST Pressure Sensors