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Differential pressure gauges for air and gas




Using the simple, frictionless Magnehelic movement which transmits the effect of changes in pressure from a diaphragm to an indicating pointer by means of magnetic linkages, they quickly indicate low air and compatible, non-corrosive gas pressures, either positive, negative (vacuum) or differential. The design resists shock, vibration and over-pressures. It avoids wear and physical contact which might destroy the accuracy and sensitivity of the instrument. There is no manometer fluid to evaporate, freeze or cause toxic or levelling problems.


Product Details

  • Service: Non-corrosive air & natural gas
  • Accuracy: ± 2% of full scale throughout range 21.1°C
  • Pressure limits: -0.677 bar to 1.034 bar
  • Overpressure: Relief plug opens at approximately 1.72 bar, standard gauges only
  • Temperature limits: -7°C to +60°C
  • Size: 101.6 mm diameter dial face
  • Mounting orientation: diaphragm in vertical position
  • Process connections: 1/8” female NPT duplicate high and low pressure taps-one pair side and one pair back
  • Weight: 510 g


Onsite Diagnostics

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  • This field is for validation purposes and should be left unchanged.


We recommend Duomo Gas Detection products are serviced at least annually to ensure efficacy and extend sensor life. Our qualified team of engineers are available Nationwide.



  • Datasheet

    748.83 KB | pdf


Support & Service

If you require technical assistance or an annual service on this product please contact us and we will be happy to help. Our qualified team of engineers are available Nationwide.

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