1 PC ME4-H2S Hydrogen Sulfide Gas Sensor

ME4-H2S hydrogen sulfide gas sensor is constant potential electrolysis type. Oxidation-reduction reaction with hydrogen sulfide and oxygen take place respectively on the working electrode and on the counter electrode. The process releases electric charge and generates current. The current is in direct proportion to the concentration of hydrogen sulfide. So the concentration of the target gas could be got by measuring the value of current. Application It is used for hydrogen sulfide detection in industrial occasions, mine and environmental protection field. Features Low power consumption High precision High sensitivity Wide linear range Good anti-interference ability Excellent repeatability and stability Specifications Detection gas Hydrogen Sulfide (H2S) Detection range 0～100ppm Max range 500ppm Sensitivity (0.8±0.15) µA/ppm Resolution 0.1ppm Response time (T90) ＜30S Bias voltage 0mV Load resistance 10Ω (recommended) Repeatability ＜2% Output value Stability (/month) ＜2% Output linearity Linear Zero drift (-20℃～40℃) ≤0.2ppm Temperature range -20℃～50℃ Humidity range 15%～90%RH Pressure range standard atmospheric pressure±10% Life span 2 years (in air)   * The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.