3-in-1 Barometric Pressure, Humidity and Temperature Transmitter PTU300 Series

Vaisala Combined Pressure, Humidity and Temperature Transmitter PTU300

  • Combines the measurement of barometric pressure, relative humidity and temperature into one instrument

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


  • Two accuracy classes for pressure
  • Can be equipped with a second pressure sensor for added reliability
  • Choice of two different combined humidity and temperature probes, and one temperature probe.
  • Outdoor installation kit available
  • Example applications: GPS meteorology, other GPS applications, meteorological applications, environmental monitoring in calibration laboratories

Model PTU301 for wall mounting
PTU303 for general use
PTU307 for high humidity
PTU30T for pressure and temperature measurement
Measurement Range 50 - 1100 hPa or 500 - 1100 hPa
0.8 - 100% rH
-40 to 60ºC (with HMP45D or PT100 probe)
Display optional LCD
Accuracy at 20ºC 500 - 1100hPa
  • Class A: ±0.1 hPa
  • Class B: ±0.2 hPa

  • 50 - 1100 hPa: ±0.3 hPa
  • Humidity: max ±3% rH
  • Temperature: max ±0.5ºC
Power supply 10 - 30 VDC
Output RS-232C, RS-485

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