Shenzhen TengWei environmental protection technology co., LTD. Wholesale distribution of carbon dioxide sensor, PM2.5 sensor, CO2 sensor, formaldehyde, TVOC sensors, temperature and humidity sensor and oxygen sensors, sulfur dioxide, carbon monoxide gas sensor, a new risk control system development, development of PM2.5 / CO2 transmitter best-selling consumer market, Among consumers enjoy a high status, the company and a number of retailers and agents to establish a long-term stable cooperative relations. A complete range of products at reasonable prices. Shenzhen Tengwei environmental Protection technology Co., Ltd. has strong strength, heavy credit, abide by the contract, ensure product quality, with a variety of operating characteristics and the principle of small profits but quick turnover, won the trust of our customers.