ADT681-DP Digital Pressure Gauge – Differential Pressure

ADT681-DP Digital Pressure Gauge – Differential Pressure

A reliable and economical digital pressure gauge for a wide variety of pressure applications with high accuracy options.



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The Additel ADT681 digital differential pressure gauges, provide an accurate, reliable and economical solution for a wide range of pressure applications. With accuracy choices of 0.05% & 0.02% of full scale and differential pressure ranges from +/- 2.5 mbar to +/- 70 kPa, there are options to meet all budgets and service requirements.

The ADT681 digital pressure gauge is supplied with ISO17025 accredited calibration certificate. Zedflo is a NATA accredited facility and can provide accredited calibration for these products.

The ADT681 has options for measuring gauge, compound, differential, absolute and barometric pressure.

View Data Logging Versions

View IECEx Intrinsically Safe Versions

View IECEx Intrinsically Safe Data Logging Versions

View Panel Mount Versions

View Panel Mount Data Logging Versions



  • Choice of accuracy levels 0.05% & 0.02% FS
  • Pressure ranges from +/- 2.5 mbar to +/- 70 kPa
  • Selectable engineering units
  • Large back-lit easy to read display
  • % pressure indication with fan shaped graph scale for visual reference
  • Display flash warning when pressure over 120% of FS
  • All ADT681 gauges can perform real time logging with optional Log II software
  • IECEx certified model available
  • ISO 17025 accredited calibration certificate included
  • Precision pressure measurement
  • Field gauge and switch calibration
  • Pressure safety valve (PSV) testing
  • Pressure regulator testing
  • Hydrotesting
  • Gas pressure testing
  • Pressure data logging