Shandong Nuofang Electronic Technology Co. , Ltd. is a high-tech enterprise dedicated to air quality testing, software development, measurement and control system development. The company has a strong technical research and Development Force, the R & D personnel mainly by Shandong University, Shandong Jianzhu University and other university professors and researchers. The product is the university research achievement for many years, mainly has the particulate matter dust, raises the Dust Sensor, devotes to the environmental protection equipment development, the software and the cloud platform development as well as the big data service. Advanced Technology, powerful function, program optimization, stable and reliable, cost-effective, easy maintenance, and has a high transplant and expansion.