Sulfur Dioxide Sensor (SO2) | 0 - 20 ppm |

Model: FD-SO2-REPLACEMENTDatasheet: Click Here PDFAvailability: Usually in stockCompatible: FD-90A-SO2 Features ⚛️ High precision and long life (2 years) 🚄 Fast response speed, fast return to zero  🔋 Low power consumption, high sensitivity 🔬Wide linear range, strong anti-interference ability 💪 Excellent repeatability and stability Description These are generic SO2 sensors used as the pin-to-pin replacement of the standard 4-series electrochemical sensors. It is used throughout many gas detector brands and is an excellent SO2 gas sensor replacement element. Our SO2 sensor employs an advanced electrolytic mechanism where sulfur dioxide and oxygen engage in precise oxidation-reduction reactions across specialized electrodes. By generating an electrical current directly proportional to the gas concentration, this sophisticated sensor enables accurate measurement of sulfur dioxide levels. The current's magnitude provides a quantitative assessment of SO2 presence in various environmental and industrial monitoring applications. Our SO2 detection technologies serve as critical monitoring tools across diverse industrial and environmental sectors. From industrial sites and livestock facilities to smart city infrastructure and atmospheric research, SO2 detectors provide comprehensive gas concentration insights. These advanced sensing systems enable precise measurement, early warning mechanisms, and comprehensive monitoring, supporting environmental protection, public health, and regulatory compliance in multiple critical application domains. Instructions Once replaced and installed in your gas detector or analyzer, please let it sit for 24 hours so the sensor can stabilize to your environment. This step is very important. Then undertake the appropriate zero and calibration for your specific gas detector. See your gas detector manufacturer's specific instructions. Once calibrated, your gas analyzer will be ready for use. Specifications Detection Principle Electrochemical Three electrodes Detection Gas SO2 Detection Range 0-20 PPM Maximum Load Concentration 150 PPM Output Signal 500±100 nA/PPM Zero Drift 0~1 PPM Resolution 0.1 PPM Response Time <45s Bias Voltage 0 Load Resistance 5~30Ω Working Temperature -30℃-50℃ Working Humidity 15%RH to 90%RH (no condensation) Repeatability <±2% output signal Long-term Stability <2% signal/month Linearity Linearity 150 PPM Work Pressure 90 to 110 kPa Shelf Life 12 months after delivery Service Life 2 years Cross-Sensitivity Data Interfering Gas Gas Concentration Used (ppm) Value Displayed (ppm HCL) CO 400 <3 H2S 20 0 H2 2000 <8 NO 20 0 NO2 20 <-24