Vaisala has acquired new products and technology from Finnish company Envitems to expand its offering in the growing air quality monitoring market. The products acquired measure pollution gases, like carbon monoxide, nitrous oxides, sulfur dioxide, hydrogen sulfide and ozone, as well as particles in the air. The products can be combined seamlessly with Vaisala industry-leading WXT multi-weather stations, and they present a novel, innovative way to build affordable but comprehensive air quality monitoring ne