The BESANTEK BSTMG01CO Carbon Monoxide Gas Detector may be used in underground coal mining, the petrochemical industry, environmental protection and other spaces where explosive gases may exist. The BST-MG01CO is specifically designed to detect Carbon Monoxide gas, and produces a sound and light alarm when the CO gas concentration in the environment is higher or lower than that of preset alarm point. This device is portable and can be also used as a fixed device.