An electrochemical gas sensor cell is provided, the use of which permits quantitative measurement of volatile gas contaminants in an atmosphere being monitored. The cell comprises at least a first sensor electrode and a second counter electrode, on either side of an ion conductive electrolyte which may...http://www.google.co.uk/patents/US5302274?utm_source=gb-gplus-sharePatent US5302274 - Electrochemical gas sensor cells using three dimensional sensing electrodes
