Vaisala Oyj engages in the weather and environmental, and industrial measurement business serving weather related and industrial markets. The company provides industrial instruments for high-end humidity, dew point and carbon dioxide measurements, and vaporized hydrogen peroxide measurements; and data loggers for temperature, humidity, carbon dioxide, differential pressure, and other critical parameters, as well as monitoring software and cloud-based SaaS solutions for local and remote use. It also offers dissolved gas analyzer for continuous monitoring of power transformers and instruments for biogas and biomethane production optimization, as well as inline process refractometers. In addition, the company provides weather and environmental solutions, such as ceilometers and lidar-based vertical atmospheric profilers; visibility and present weather, lightning, road and surface state, air quality, pressure, temperature, wind, and humidity sensors; weather stations; wind lidars; weather radars; radiosondes and sounding systems; and weather and environmental data and forecasts. Further, it offers maintenance, calibration and repair, and modernization services, as well as extended warranties solution. The company also sells its products through online store. It serves data centers, chemicals, semiconductors, roads and automotive, laboratories, cleanrooms, HVAC and indoor air, warehouses, electronics, battery manufacturing, life sciences and pharmaceutical, sugar, compressed air, agriculture, carbon capture, utilization and storage, fuel cell, biogas, pulp, paper, food and beverages, metrology, aviation, renewable energy, and power industries. The company has operations in North and South America, Europe, the Middle East, Africa, and the Asia Pacific. Vaisala Oyj was founded in 1936 and is headquartered in Vantaa, Finland.