Products
CH2O Sensor
Application:
Widely used in civil, industrial and environmental protection occasion for formaldehyde detectionProduct characteristics:
Be stableDescription
MQ-E2-CH2O-φ16 formaldehyde sensor is a fuel cell-type electrochemical sensor. Formaldehyde and oxygen undergo corresponding redox reactions at the working and counter electrodes, releasing charges and forming an electric current. The magnitude of the current is directly proportional to the formaldehyde concentration and follows Faraday's law. The formaldehyde concentration can be determined by measuring the magnitude of the current.
Specifications
| Media | CH2O |
| Testing range | 0-5ppm(20ppm Max.) |
| Sensitivity | (0.25±0.6)μA/ppm |
| Resolution ratio | 0.02ppm |
| Load resistance | (120/200/300)Ω |
| Repeatability | <2% output value |
| Output linearity | linearity |
| Zero drift(-20℃~+40℃) | ≤0.2ppm |
| Temperature range | -20℃~+50℃ |
| Humidity | 15%-90%RH |
| Response time(T90) | ≤60s |
| Pressure | standard air pressure±10% |
| Life | 2 years(in air) |
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