The SMNH3 ammonia gas detection sensor is a constant potential electrolytic sensor. Ammonia and oxygen undergo corresponding oxidation-reduction reactions on the working electrode and counter electrode, respectively, releasing charges and forming an electric current. The magnitude of the generated current is directly proportional to the ammonia concentration. By measuring the magnitude of the current, the ammonia concentration can be determined.
| Item | Parameter |
| Model number | SMNH3-100 |
| Detection principle | Electrochemical three electrodes |
| Detection gas | NH3 |
| Detection range | 0-100PPM |
| Maximum load concentration | 200PPM |
| Sensitivity | 45±15nA/PPM |
| Zero Drift | ±3PPM |
| Resolution | 0.1PPM |
| Response time | ＜75s |
| Load resistance | 5~30Ω |
| Temperature range | -30℃-50℃ |
| Humidity range | 15%RH to 90%RH (no condensation) |
| Repeatability | ＜±2% |
| Long-term stability | ＜2% signal/month |
| Linearity | Linearity |
| Work pressure | 90 to 110 kPa |
| Shelf life | 12 months after delivery |
| Service life | 2 years |
To make sure that we provide you suitable model, could you share your contact information? Thanks!
