Model: FD-HCN-SENSOR
Datasheet: Click Here PDF
Availability: Usually in stock
Compatible: FD-90A-HCN
These are generic HCN 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 HCN gas sensor replacement element.
Our HCN sensor employs an advanced electrolytic mechanism where hydrogen cyanide and oxygen interact through precise redox reactions on specialized electrodes. By generating an electrical current directly proportional to the gas concentration, this sophisticated sensor enables accurate measurement of hydrogen cyanide levels. The current’s magnitude provides a quantitative assessment of HCN presence in various industrial and environmental monitoring applications.
Hydrogen cyanide detection technologies play a critical role across diverse industrial and municipal domains. From manufacturing facilities and maritime operations to power generation and municipal infrastructure, HCN detectors provide comprehensive gas concentration insights. These advanced sensing systems enable precise measurement, early warning mechanisms, and critical monitoring, supporting safety, environmental protection, and risk mitigation in multiple application sectors.
| Detection Principle | Electrochemical Three electrodes |
| Detection Gas | HCN |
| Detection Range | 0-50 PPM |
| Maximum Load Concentration | 100 PPM |
| Output Signal | 100±30 nA/PPM |
| Zero Drift | -1~1 PPM |
| Resolution | 0.1 PPM |
| Response Time | ≤120s |
| 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 | Regression coefficient R²=0.999 |
| Work Pressure | 90 to 110 kPa |
| Shelf Life | 12 months after delivery |
| Service Life | 2 years |
| Interfering Gas | Gas Concentration Used (ppm) | Value Displayed (ppm HCN) |
|---|---|---|
| CO | 100 | 0 |
| H2S | 26 | 52 |
| CL2 | 16.3 | 0 |
| NO | 18 | 0 |
| NO2 | 23 | -1 |
| SO2 | 23 | 8 |





