Taotuo Portable High Sensitivity Combustible Gas Leak Detector with Sound Light Alarm Quickly identify and determine the position of combustible gas leak Manually adjust the sensitivity High sensitivity Visible sound and light alarms Detecting gas species :( natural gas, methane, ethane, Propane, butane, acetone, alcohol, ammonia, hydrogen, Smoke, sulfide, naphtha, gasoline vapor, Carbon monoxide, paint thinner, organic solvent vapors, Volatile industrial solvents. )