What are Electrochemical Sensors?
Electrochemical sensors are excellent for detecting low parts-per-million concentrations of a select gas. They contain an electrolyte that reacts with a specific gas, producing an output signal that is proportional to the amount of gas present. Electrochemical sensors exist for gases such as chlorine, carbon monoxide, hydrogen sulfide, and hydrogen, but cannot be used to measure hydrocarbons. The number of gases that can be detected using this technology is relatively small, but is increasing from year to year.
