The EC150 is an open path gas analyser specifically designed for Eddy Covariance studies. Measuring CO2 and H2O this device physically mounts with the CSAT3A 3-D sonic anemometer to closely co-locate the measurement volumes for both gas and turbulence. The two devices also share a control box which reduces system complexity making for simpler installation but also reduces systems power and syncronises the measurement of the two devices outside of the datalogger.
The EC155 is a closed path gas analyser designed for use in Eddy Covariance studies - as a stand alone device it measures absolute carbon dioxide, water vapour densities, sample cell pressure and tempertaure. It is deisgned to be used with our CSAT3A sonic head as part of our CPEC200 integrated eddy covariance system.