Miniature Infrared Methane Sensor KGD-SJH-200
Product Introduction
The Miniature Infrared Methane Sensor KGD-SJH-200 is an
industrial-grade gas sensor used for real-time measurement of
changes in gas concentration. It adopts the Non-Dispersive Infrared
(NDIR) detection technology. Compared with the thermal catalytic
and semiconductor principles, it has remarkable features and
advantages such as a good signal-to-noise ratio, strong
selectivity, immunity to cross-gas interference, high precision,
excellent long-term stability, and a long service life. The sensor
is compatible with both analog voltage and digital serial port
outputs, meeting various usage requirements in industrial sites,
laboratory measurements, etc., and is widely applied in fields such
as coal mines, fire protection, urban utility tunnels, underground
chambers, and pressure regulating cabinets.
Product Features
- Resistance to high humidity and low power consumption
- Ensures detection accuracy across the entire temperature and
concentration range
- Resistance to interference from acetic acid and ethanol gases
- Abnormal alarm outputs such as high humidity alarms
- Compatible with both digital and analog signal output modes
- Self-calibration is optional
Technical Parameters
| Detection Range | 0 to 5% by volume (vol) |
| Detection Accuracy | 0 to 1%: ≤ ±0.06% by volume (Vol); 1 to 100%: ≤ ±6% of the reading |
| Resolution | 0.01% |
| Operating Conditions | -40 degrees Celsius to 70 degrees Celsius; 0 to 95% Relative
Humidity (non-condensing) |
| Storage Conditions | -40 degrees Celsius to 85 degrees Celsius; 0 to 95% Relative
Humidity (non-condensing) |
| Response Time (T90) | Less than 25 seconds |
| Service Life | More than 10 years |
| Product Dimensions | Φ20 x 16.6 millimeters (excluding pins) |
