The system is designed to provide a visual representation of indoor air quality in buildings as part of building management standards related to conditions such as sick building syndrome. Because a large number of units can be networked, the system can display precise changes in the concentration of selected IAQ parameters over time at different locations. The IAQ Profile Monitor system enables users to control and run multiple wireless IAQ sampling units -- all of which communicate through the complex and reliable ZigBee wireless mesh system. Mesh network systems are cost effective, easy to install, and simple to use: the nodes that make up the mesh network are automatically configured with good signal routing.