The H4H2S hydrogen sulfide gas detection sensor is a constant potential electrolytic sensor. Hydrogen sulfide and oxygen undergo corresponding redox reactions on the working electrode and counter electrode, respectively, releasing charges and forming a current. The magnitude of the current is directly proportional to the hydrogen sulfide concentration, and the concentration of hydrogen sulfide can be determined by measuring the current magnitude.
| Item | Parameter |
| Model number | H4H2S-100 |
| Detection principle | Electrochemical three electrodes |
| Detection gas | H2S |
| Detection range | 0-100PPM |
| Maximum load concentration | 200PPM |
| Sensitivity | 700±150nA/PPM |
| Zero drift | ＜±1PPM |
| Resolution | ＜1PPM |
| Response time | ＜20s |
| Bias | 0 |
| Load resistance | 5~30Ω |
| Temperature range | -30℃-50℃ |
| Humidity range | 15%RH to 90%RH (no condensation) |
| Repeatability | ＜1% output signal |
| Long-term stability | ＜2% signal/month |
| Linearity | Linearity,The regression coefficient R²=0.999 |
| Work pressure | 90 to 110 kPa |
| Shelf life | 18 months after delivery |
| Service life | 2 years |
To make sure that we provide you suitable model, could you share your contact information? Thanks!
