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Absolute Pressure 1600 mbar to 1 mbar (=hPa), 1200 Torr to 1 Torr

The versatile VD81 digital vacuum meter measures absolute pressure in the rough vacuum range. It is equipped with USB interface and can be used as data logger.
The VD81 can be operated with battery or external power supply making it ideal for either portable or stationary applications.


  • Chemically resistant ceramic sensor with FKM sealing
  • Min/Max Memory: Storage and display of high and low values
  • Up to 5000 h battery life
  • Data logger functionality: Save up to 2000 measurements in the vacuum meter
  • High repeatability, excellent long term stability
  • Pressure units mbar, Torr, hPa
  • Automatic switch off or continuous operation
  • Vacuum connection by small flange, G1/4 female thread or screw in hose nozzle

Typical Applications

  • Check and setup of vacuum plants
  • Operational control and documentation at vacuum plants and pumps
  • Vacuum packaging machines
  • Replacement of mercury manometers
  • Chemical process engineering
  • Vacuum furnaces
  • Analysis instruments
Technical Data
Measuring Principle Piezo resistive, independent of gas type
Materials In Contact With Vacuum Stainless steel 1.4305, Al2O3 ceramic, FKM
Measurement Range 1600 - 1 mbar (1200 - 1 Torr), max. overpressure 4 bar absolute
Resolution 1 mbar (Torr)
Accuracy < +-0.3% full scale (linearity, hysteresis, repeatability)
Response Time 20 ms
Measuring Rate 1.0 s (100 ms in data logger mode)
Data Logging Rate 0.1...999 s
Operating Temperature 5...+50 °C
Storage Temperature -20...+60 °C
Power Supply 9 V block battery (alternatively NiMh rechargeable battery or 15 VDC external (power supply)
Electrical Connection Jack for external power supply
Power Consumption Approx. 2 mW
Operating Time 9 V lithium battery: max. 5000 h
9 V Alkaline 6LR61 battery: max. 2500 h
9 V rechargeable battery 150 mA: max. 500 h
Sensor Connection Sensor integrated in the instrument
Vacuum Connection DN 16 ISO-KF with G1/4 female thread or
hose nozzle (accessory VD81SW1)
Protection Class IP40
Display LCD 12 mm
Weight Approx. 200 g (battery included)
Additional Info

Additional Info

4.00 LBS
Calculated at Checkout