... be allocated to multiple types of electrochemical sensors, the display of poisonous and harmful gas detection of air within the content ( ... and high-sensitivity anti-virus gas sensor, capable of automatically adapting itself to environmental changes, adjusting sensors aged curve, and keeping ... principle:electrochemical· Detected gasCO,H2,H2S,Cl2,SO2,O2,NH3,NO2,HCl,HCN,PH3,HF,SiH4, Etc..· Accuracy:±5%F. ...