Figaro's sulfur dioxide sensor FECS43-20-SO2 is a unique electrochemical sulfur dioxide sensor. Its most notable features are stable output at high temperatures and a unique leak-proof structure, making it ideal for sulfur dioxide monitors and SO2 detector applications in various fields.
The ME3-SO2 electrochemical gas sensor operates on the electrochemical principle, where the target gas undergoes oxidation-reduction reactions on the working and counter electrodes, releasing charge and generating a current through an external circuit. The current magnitude is proportional to the gas concentration, enabling quantitative measurement of the target gas.
The ME4-SO2 sensor is a constant-potential electrolytic SO2 sensor. SO2 and O2 undergo oxidation-reduction reactions on the working and counter electrodes, releasing charge and forming a current. The current magnitude is proportional to the SO2 concentration, so the SO2 concentration can be determined by measuring the current.
Long-term drift: <5%/year; Load resistance: 10Ω; Repeatability: CO ≤3%, H2S ≤2%; Linearity: linear
The SO2-BF sulfur dioxide sensor is mainly used in sulfur dioxide gas transmitters and various sulfur dioxide detection applications.