Shenzhen Yifan Technology Co., Ltd. was founded in Shenzhen, the capital of reform and opening up. It is a high-tech enterprise that integrates research and development, production, and sales. The company focuses on the research and development, production, and sales of intelligent environmental monitoring products. A comprehensive enterprise has been formed, mainly consisting of gas detection instruments and environmental monitoring and analysis instruments, with environmental monitoring solutions provided as a supplement. The company has a group of excellent R&D engineers in industries such as sensors, online environmental monitoring, software development, and environmental governance; Yifan Technology has a complete range of advanced laboratories, including high and low temperature laboratories, pressure testing laboratories, shock and vibration laboratories, and gas calibration laboratories. Yifan Technology was born in response to the times, with the mission of building a green living environment; The company has independently developed the YF series grid based precision monitoring system for air pollutants, including factory organic volatile gas (VOC) online monitoring devices, pollution source organic volatile gas (VOC) online monitoring systems, nitrogen oxide online monitoring systems, oil fume online monitoring systems, dust online detection systems, construction site dust noise wind speed and direction online monitoring systems, drone environmental monitoring systems, fire drone alarm monitoring systems, indoor air quality monitoring devices, nuclear radiation detection, toxic gas detection instruments, grid based air quality monitoring micro stations, household formaldehyde detectors, PM2.5 detectors, TVOC detectors, etc., which have reached the world's advanced level; Widely used in fields such as home indoor air quality testing, smart home, petroleum and petrochemical, medical, mining, agricultural industry, atmospheric environment monitoring, navigation, agriculture, etc