Vaisala Instruments develops, manufactures and markets instruments for the measurement of relative humidity, dewpoint, carbon dioxide, barometric pressure, wind, rain, visibility, cloud height and present weather. The measurements are used to improve product quality, the efficiency of manufacturing processes and energy consumption, as well as the safety and wellbeing of people.

The division's products are targeted at market segments in a variety of applications and industries, such as pharmaceutical, automotive, power, building automation, biotechnology and food industries, as well as meteorology and research. For example, optimum humidity conditions in drying processes improve quality and productivity, and also reduce energy and maintenance costs. Monitoring moisture in oil helps to prevent corrosion and machine malfunction. Carbon dioxide measurement is used in industrial processes, in horticultural and ecological applications as well as in ventilation control. Barometric pressure is an important parameter in weather observation but also in industrial equipment such as laser interferometers and engine test benches. Accurate visibility, wind and cloud height measurements are essential for aviation safety. The multi-sensor weather transmitter is an ideal component for weather stations. The division also offers calibration and maintenance services through its highly specialized service centers around the world.

Product leadership and customer satisfaction characterize Vaisala Instruments' operations. The division always strives to offer leading edge products to its customers. This is achieved through unique patented Vaisala sensor technologies that guarantee accurate and reliable measurements.