ADT 681

Additel ADT 681 pressure calibrator
  • Additel ADT 681 pressure calibrator
Pressure gauges

ADT 681


681 Digital pressure gauges

  • Fully temperature compensated accuracy
  • Panel mount gauges are available
  • Intrinsically safe version (681IS)
  • IP67 degree of protection (681IS)

Technical specifications

0.02%, 0.05%, 0.1%, 0.2% FS or 0.1%RD
Ø110mm X 35mm depth X 176mm height (panel mount gauge: Ø140mm X 86mm depth) - 0.6kg
One 9V alkaline battery (included)
Vibrations & Shocks
Vibration: 5g (20-2000 Hz); Shock: 100g/11ms
Display rate: 3 readings per second (Default setting)
Data Logging
Data storage: 21,843 records (each record includes data, time, pressure, and temperature); Rate: user -selectable from 1 to 99,999 second intervals
Power auto-off: 60 minutes power auto-off. Auto-off may be disabled; External power: 100/220V external power adapter (optional)
Environment Specifications
Humidity: <95%
IP67 (available for 681IS GP15-60K)
1 year
CE marked ATEX certified intrinsically safe (ADT681IS)


With advanced microprocessor technology and state-of-the-art silicon pressure sensors, the 681 series digital pressure gauges provide an accurate, reliable, and economic solution for a wide range of pressure applications. They are loaded with functionality and remarkably easy to use.

To reach the best performance, every silicon pressure sensor in our gauges is specially aged, tested and screened before assembly. At Additel, fully temperature compensated accuracy means every sensor is pressure tested at several environmental temperatures from -10°C to 50°C. With this test data individual coefficients are generated and stored in the gauge characterizing its performance over the full temperature compensated range.

And now the ADT681IS comes with an IP67 rating meaning it is dust resistant and water proof, submersible in 1 meter of water.