PTB 330

Range : Atmospheric Pressure Sensor / Digital Barometer

The Vaisala Digital Barometer PTB330 is designed to capture accurate barometric pressure readings under the harshest of conditions.

Built around Vaisala’s trademarked BAROCAP® sensor technology, the PTB330 combines absolute pressure measurement and exceptional accuracy with low hysteresis and long-term stability.

Categories ,


  • Generating reliable and accurate information regarding potential major changes in weather.
  • Enabling early warning systems to protect lives and property from potentially destructive weather events.
  • Tracking the progress of weather fronts.
  • Predicting upcoming and sudden changes in weather as indicated by changes in barometric pressure.
  • Defining the high- and low-pressure systems for generation of numerical weather models.
  • Automatic reporting of QNH and QFE reading for aviation users.


Sensor redundancy supports critical and demanding applications where accurate results are a must.

Advanced sensor technology that leverages single-crystal silicon material and capacitive structure to deliver absolute pressure measurement with low hysteresis, high repeatability.

Intuitive menu-based interface for easy customization of unit display around your specific informational demands.

Multilingual display allows data viewing in English, German, French, Spanish, Swedish, Finnish, Japanese, or Russian.

Graphical display with six different time windows lets you compare and review weather trends using historical data as far back as one year.

Wired or battery power with voltage supply ranges from 10 to 35 VDC, allowing for use in battery-powered applications. An external AC supply enables connection to all universal main AC supplies.

Two alternative accuracy classes, including Class A accuracy for the most demanding applications such as barometric reference, and Class B accuracy for more conventional use.


Vaisala Official Distributor in Humidity, Dewpoint, Continuous Monitoring System (CMS) viewLinc (2015), Temperature, CO2, Barometric Pressure, Moisture in Oil, Wind etc in Malaysia since 1990s

Model PTB330
Measurement Range 50 – 1100 hPa or 500 – 1100 hPa
Display optional LCD
Accuracy at 20ºC 500 – 1100hPa
Class A: ±0.1 hPa
Class B: ±0.2 hPa
50 – 1100 hPa: ±0.3 hPa
Power supply 10 – 30 VDC
Output RS-232C, RS-485, optional analog 0 – 5 VDC, 4-20mA