One transmitter, three measurements

The Vaisala Combined Pressure, Humidity and Temperature Transmitter PTU300 measures barometric pressure in two accuracy classes, humidity, and temperature.

You can choose which probe best suits your needs: PTU301 for laboratories, PTU303 for outdoor use, the warmed PTU307 probe for demanding meteorology, and PTU30T for pressure and temperature only.

Vaisala proven sensor technology

The PTU300 transmitter uses sensors known for their high accuracy and excellent long-term stability: the Vaisala BAROCAP® is used for pressure measurement and the Vaisala HUMICAP® for humidity measurement. The temperature sensor is a platinum RTD sensor.

Graphical trend display

The PTU300 series features a large numerical and graphical display, allowing users to easily monitor three-hour measurement trends. It also provides a one-year trend history.

The display also shows the WMO pressure trend ÄP 3h and tendency of 0 ... 9.

Data collection and transfer to PC

The recorded measurement data can be viewed on the display or transferred to PC with Microsoft Windows® software.

Flexible calibration

A quick, one-point field calibration for humidity can easily be done using the Vaisala Hand-Held Humidity Meter HM70.

Serial communication

The PTU300 comes with a standard RS-232 serial interface. The output format is compatible with major GPS receivers and NMEA coded messages. RS-485 is available as an option.

Outdoor installation kit