An air quality monitor can help you take steps to deal with poor air quality, especially for those who are particularly sensitive. The AirLink^® Professional Air Quality Monitor can be used inside your home or outdoors. An AirLink Quality Monitor provides real-time Air Quality Index readings and sends them to your phone or computer. The air quality sensor measures particulates (PM) in the air by size: PM1, PM2.5, and PM10. The air quality meter gives you information both as data and as a color-coded graph that is easy to understand. AirLink is one of the best air monitors on the market for your home and outdoor air quality concerns.