A brief history:

Vaisala is a globally recognized Finnish technology company specializing in environmental and industrial measurement solutions. Founded in 1936 by Professor Vilho Väisälä in Helsinki, the company originally emerged from scientific research, with its first breakthrough being the development of radiosonde technology for measuring atmospheric conditions.

Today, Vaisala is a world leader in producing advanced meteorological, environmental, and industrial measurement instruments and systems. The company operates internationally, serving sectors such as weather monitoring, aviation, renewable energy, transportation, and industrial process control. Its product portfolio includes weather stations, humidity sensors, meteorological equipment, and complex atmospheric monitoring systems. They are particularly renowned for their expertise in humidity, weather, and dewpoint measurement technologies.

Publicly traded on the Nasdaq Helsinki Stock Exchange, Vaisala has demonstrated consistent growth and technological innovation. The company employs approximately 1,600 worldwide and maintains a strong commitment to research and development, continually pushing the boundaries of environmental and industrial measurement technologies.

Vaisala Dew Point Meters

Vaisala’s dew point meters are designed to measure the moisture content in gases and provide precise humidity measurements across many industrial applications using a proprietary system, based on thin-film polymer technology called DRYCAP.

This explanation of how it works is from Vaisala’s website: The sensor’s thin-film polymer absorbs or releases water vapour as the surrounding humidity increases or decreases. The dielectric properties of the polymer change as the humidity around the sensor changes, as does the capacitance of the sensor. Capacitance is converted into a humidity reading. The capacitive polymer sensor is bonded together with a temperature sensor, and dew point is calculated from the humidity and temperature readings.

The key product line in their dew point sensor range is the MMP series (Moisture Measurement Probe), which offers high-precision measurements for challenging environments. These sensors are used in several critical industrial sectors:

Compressed Air and Gas Industries
– Monitor moisture levels in compressed air systems
– Prevent condensation and corrosion in pneumatic equipment
– Ensure quality control in manufacturing processes
– Help maintain optimal operational efficiency of industrial machinery

Power Generation and Energy Sector
– Track moisture in turbine and generator cooling systems
– Monitor insulation gas conditions in transformers
– Prevent moisture-related equipment degradation
– Support renewable energy infrastructure maintenance

Semiconductor and Electronics Manufacturing
– Provide ultra-precise humidity measurements in clean room environments
– Control moisture during sensitive production processes
– Prevent moisture-induced defects in microchip and electronic component manufacturing

Chemical and Pharmaceutical Processing
– Monitor moisture levels in chemical reaction vessels
– Ensure product quality and consistency
– Support precise environmental control in research and production

Food and Beverage Industry
– Track moisture in storage and processing environments
– Maintain optimal conditions for food preservation
– Support quality assurance processes

Vaisala dew point meters are known for their exceptional accuracy, reliability, and durability, often capable of operating in extreme temperatures and harsh industrial conditions. The FPG is the perfect calibration instrument for this range from Vaisala.

Below you will find a list of all the Vaisala dew point sensors the FPG can calibrate quickly and easily either in the lab or in-situ.