Environmental sensors are used to monitor conditions such as temperature and humidity in a network facility. Humidity levels are crucial to maintain within a certain range to prevent static electricity build-up, which can damage equipment, and to avoid too much moisture that can lead to corrosion. Monitoring systems typically alert network administrators if the humidity levels fall outside of predefined thresholds, both on the low and high end. The presence of these sensors and alerts helps to ensure network availability by taking proactive measures against environmental factors that can affect equipment performance and lifespan.