This Gas Detector Pen, model DY80 can detect primarily combustible gas like Natural gas (NG) LPG, coal gas (a mixture of carbon monoxide (CO) and hydrogen (H2) gas from coal) and etc..It is very easy and simple to use.
This Combustible Gas Detector, model DY8800A+ can detect primarily combustible natural gas, artifical coal gas, LPG and others It is very handy and simple to use.
