One instrument measures three parameters simultaneously: barometric pressure, humidity, and temperature.
Please note that the PTU300 series is being discontinued. It is replaced by Indigo family products. Do not specify PTU300 for new projects, instead view Indigo transmitters and probes that are also designed for use in demanding industrial applications.
Unique combination of a meteorological grade barometer combined with humidity and temperature measurement in a single, industrial-grade device.
The instrument also has four different humidity probe options for various measurement needs. Reliable Vaisala HUMICAP® and BAROCAP® sensor technologies make it suitable for demanding meteorology applications and maritime conditions.
PTU300 incorporates sensors known for their high accuracy and excellent long-term stability: Vaisala BAROCAP® for pressure measurement and Vaisala HUMICAP® for humidity measurement. The temperature sensor is a platinum RTD sensor.
PTU300 features a large numerical and graphical display with a multilingual menu and keypad. It allows users to easily monitor operational data, measurement trends, and access measurement history for the past 12 months.
The optional data logger, with real-time clock, makes it possible to generate over four years of measurement history and zoom in on any desired time or time frame.
The display alarm allows any measured parameter to be tracked, with freely configurable low and high limits.
PTU300 comes with a standard RS-232 serial interface. The output format is compatible with major GPS receivers and NMEA-coded messages. An isolated RS-485 interface is available as an option. PTU300 is also capable of applying the Modbus communication protocol and, together with an appropriate connection option, provides either Modbus RTU (RS-485) or Modbus TCP/IP (Ethernet) communication.
The data logger records data that can be viewed on the local display or transferred to a PC with Microsoft Windows software. The transmitter can also be connected to a network with an optional LAN interface, which enables an Ethernet connection. A USB service cable makes it easy to connect PTU300 to a PC via the service port.
Outdoor installation is possible using the optional HMT330MIK installation kit, for applications requiring reliable measurements for meteorological purposes.
Quick, one-point field calibration for humidity is easy using Vaisala Hand-Held Humidity Meter HM70. With Vaisala Barometric Pressure Transfer Standard PTB330TS, including optional humidity and temperature probe, field check, and calibration can be performed for all three parameters.
Interchangeable smart probes, robust transmitters, and Vaisala Insight software create a strong ecosystem to ensure energy efficiency, safety, and end-product quality in your operations. The modular plug-and-play design makes Indigo family probes and transmitters easy to install, use, and maintain.
PTU307 consisting of INDIGO520 transmitter + HMP7 probe for high humidity and meteorological applications. Explore this and other Vaisala combined pressure, humidity and temperature instruments in the PTU300 series compared to the new, modular Indigo520 series by downloading the comparison sheet.
Ensure safety and efficiency onshore and offshore with complete maritime weather management solutions; air quality, sea state, and helideck monitoring; and ship instrumentation.
Protect people and communities from the impacts of day-to-day and extreme weather with the industry's most accurate and reliable weather observation solutions.
Anchored by the legendary WindCube wind lidar suite, Vaisala’s wind energy solutions are unrivaled in their comprehensiveness and value. Discover end-to-end solutions with fully integrated, globally trusted sensing and digital services.
See how PTU300 is ideally suited for industrial applications such as engine testing booths, calibration laboratories, marine engine air intake monitoring, and more.
Vaisala offers probe options to fit various applications including wall mounting; warmed probe for demanding outdoor and meteorology applications; and one for pressure and temperature measurement only.
Learn more about the various applications of this unique device and review the technical data.
Developed specifically for wind turbines, the Vaisala Pressure, Humidity, and Temperature Transmitter PTU307 is the ideal tool for wind energy operators and turbine manufacturers to assess the meteorological conditions that lead to icing on rotor blades.
Learn about the advanced technology that delivers accuracy for a wide variety of meteorological and industrial applications.
Understand how it works and typical applications for various humidity measurements.
Click here to explore additional product resources for PTU300.