Air quality monitoring is becoming essential in cities, industrial zones, and residential areas to combat rising pollution levels. This demand has driven the development of mobile, compact, and cost-effective air quality monitoring systems. Unlike traditional optical sensors, which are expensive and require high maintenance, these modern systems use electrochemical sensors for accurate and affordable gas detection.

Honeywell’s AQ7 Series gas sensors are specifically designed for environmental monitoring applications. They detect multiple harmful gases, including Carbon Monoxide (CO), Nitrogen Dioxide (NO₂), Ozone (O₃), and Sulfur Dioxide (SO₂). By offering a lower-cost alternative to optical monitoring stations, the AQ7 Series enables reliable, scalable, and efficient air quality measurement for smart cities and environmental safety initiatives.