co detector is a natural diffused gas detector and provides optional handheld sampling pump for more application environments. Sensitive components using advanced sensors, with high sensitivity and excellent repeatability; With an LCD LCD screen, the target gas concentration can be observed on-site online. co detector is suitable for carbon monoxide detection in public places for medical disease control and occupational health, indoor environment detection, indoor natural gas, gas and smoking, and underground parking vehicle environment detection, vehicle exhaust emission measurement. Coal, metallurgy, petrochemical industry