1. alloy shandong nuofang electronic technology co., ltd.-dust concentration sensor, dust particle counter, particle size spectrometer, oil fume sensor, particulate matter sensor, dust concentration detector, dust alarm sensor 1 shandong nuofang electronic technology co., ltd. is a research and development enterprise with 53% of r&d personnel and authorized 103 intellectual property rights, including 43 chinese invention patents and 19 international invention patents; it has been rated as a national specialized and new "little giant" enterprise, high-tech enterprise, provincial gazelle enterprise, provincial science and technology leading enterprise, etc. shandong nuofang leads particulate matter sensors, online dust particle counters, dust alarm sensors, oil fume sensors, dust detectors and particle size spectrometers. it has internationally advanced technology and provides core components for downstream enterprises. it is used in environmental protection, industry, catering fume, laboratories, clean rooms, factory workshops and other places to monitor particulate matter concentrations. 30 strip

langfang hongrui yicheng technology co., ltd. mainly deals in: electrostatic dust concentration detector, dust bag leak detector, powder flow meter, wall-mounted dust detector, portable dust detector, as well as new integrated temperature, gas, and dust detectors and other products