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Series A1 Digital Differential Pressure Gauge


The Series A1 digital differential pressure gauge is a patent pending microprocessor based digital pressure gauge for positive, negative, and differential measurement designed to be a direct replacement for mechanical gauges. The Series A1 differential pressure gauges utilize an extremely stable piezoresistive sensing technology to give a standard full scale accuracy of 1%. For applications requiring better accuracy, the A1 is available with 0.5% or 0.25% accuracy.


  • Mounts in Industry Standard Holes
  • Universal Power 16 – 265 VAC / VDC
  • Accuracy 1% (better available)
  • Large 0.5” LED Display
  • Weatherproof Face
  • 5 selectable engineering units
  • Opti Link ™
  • Optional 4-20 mA output