In the field of environmental monitoring, Huali can provide a whole series of systems for the government department, such as environmental monitoring, supervisory control and emergency command system, which includes sewage, water quality, flue gas, air quality, haze, oil fume, noise, flash flood warning, automated irrigation, urban water pipe network and other online monitoring system and environmental monitoring and information controlling management, operation supervising for sewage treatment facilities, desulfurization performance monitoring, environmental emergency monitoring, data collection and transmission, etc.