 Constantly rising air pollution has caused panic and havoc amongst people. With increasing awareness, the requirement for air quality monitoring systems is also rising. Ambient air quality monitoring systems generate air quality data for locations they're deployed in. This data contains information about the levels of different air pollutants like CO2, carbon monoxide, NOx, SOx, O3, PM2.5, PM10, etc. Low-cost systems use a sensor-based technology which makes them compact and easy to integrate with existing government networks. Increased demand and popularity of air quality monitoring devices have also raised questions about their quality. One of the most common concerns is regarding the accuracy of the data provided. Direct exposure of sensors to environmental factors affects their ability to collect unbiased samples. This can be solved by using active sampling technology which eliminates the effects of ambient conditions like temperature, humidity, wind speed, etc. OISEM specializes in manufacturing and designing air quality monitoring systems that use active sampling technology. For accurate data collection, it is important that the devices are calibrated and collocated in real-world conditions. Collocating devices in the area they're supposed to be deployed in helps the users compare the generated data with reference systems. More devices can be collocated against reference stations for 1,000-plus data points. This is acts as an important tool to provide accurate data. Our systems also include various other features like on-device software for data prediction and forecasting. Hence, low-cost sensor-based air quality monitoring systems are very effective solutions that are not only accurate and accessible but also smart. To know more, click on link in description below.