What’s Best for Measuring Ozone, Electrochemical Sensors or HMOS?

Electrochemical sensors and heated metal oxide sensors (HMOS) are the two leading technologies for low cost measurement of ozone.  Both sensor types have strengths and weaknesses which we will outline here.  Then we will discuss which sensor type is suited to some common applications. Ozone (O3) is an important gas in industrial applications, ground-level pollution monitoring, and atmospheric studies.  The best known method for ozone measurement has been to use an analyzer based on the ultra violet absorption principle.  Despite significant cost reductions in recent years an ozone analyzer remains an expensive piece…Read more