Hanwei Electronics Group Corporation manufactures and markets gas sensors and instruments in China. It offers domestic gas alarm products, such as battery-operated CO alarm, AC powered CO alarm, independent natural or LPG gas alarm, smart gas detectors, combined CH4 and CO alarm, smoke detector, and air quality monitors; industrial gas detection, including gas leak, portable single gas, portable multi gas, fixed gas, open path gas, and flame detectors, as well as gas control panels; and alcohol tester products. Its products are used in various fields, such as petroleum, chemical, metallurgy, environmental protection, mining, electronics, electricity, pharmaceutical, food, medical health, agriculture, gas, water supply and discharge, heating, municipal engineering, home security and health, public areas, waste gas treatment, sewage treatment, biological sciences, aerospace, military, anti-terrorism, and traffic safety management. The company was formerly known as Henan Hanwei Electronics Co., Ltd. and changed its name to Hanwei Electronics Group Corporation in July 2017. Hanwei Electronics Group Corporation was founded in 1998 and is headquartered in Zhengzhou, China.