The methane (CH₄) gas sensor can be integrated into fixed gas detection equipment, portable gas detectors, industrial monitoring instruments, and gas alarm systems. Users can select the 0-5% Vol or 0-100% LEL range according to the application requirements. Its compact sensor design makes it suitable for OEM gas detection equipment and continuous methane monitoring systems.
Methane Sensor with 0 to 5% Vol / 0–100% LEL Range
- Methane (CH₄) gas sensor provides a measuring range of 0–5% Vol / 0–100% LEL for reliable methane concentration monitoring.
- With a 50 ppm resolution, the methane gas sensor can detect and monitor changes in methane concentration with high sensitivity.
- The CH₄ gas sensor features a preheating time of ≤10 seconds, enabling quick startup and rapid measurement.
High Accuracy and Long-Term Stability
- The methane sensor offers ±3% full-scale or ±5% of reading linearity and ±2% full-scale or ±5% of reading long-term stability for consistent measurement performance.
- The sensor operates with an average current of less than 1 mA and a peak current of less than 10 mA, providing low power consumption for gas monitoring systems.
- The SISCO methane gas sensor supports digital output and industrial 0.4–2 V analog output, with a default baud rate of 9600 bps, allowing integration with monitoring and control systems.
Applications
The methane (CH₄) gas sensor is designed for methane concentration monitoring in coal mines, natural gas pipelines, industrial plants, and confined spaces. It is suitable for gas leak detection, environmental monitoring, and industrial safety applications.
Coal Mines
Industrial Plants
Confined Spaces
Natural Gas Pipelines
| Model | SISCO-GS-CH4-100 |
| Working Voltage | 3.3 ~ 5 V DC |
| Operating Temperature | -20 ~ 60 °C, -40 ~ 70 °C (Extended) |
| Storage Temperature | 0 ~ 40 °C (Recommended) |
| Weight | 16.5 g |
| Service Life | 5 years |
| Target Gas | Methane (CH₄) |
| Measuring Range | 0 ~ 5% Vol (0 ~ 100% LEL) |
| Resolution | 50 ppm |
| Preheating Time | ≤10 s |
| Linearity | ±3% Full Scale or ±5% of Reading |
| Long-Term Stability | ±2% Full Scale or ±5% of Reading |
| Temperature Characteristics | ±2% Full Scale or ±10% of Reading @ -20 to 50 °C; ±4% Full Scale or ±20% of Reading @ Other Operating Temperatures |
| Humidity Characteristics | ±2% Full Scale or ±15% of Reading Relative to 25% RH |
| Automatic Calibration | 168 Hours (Default); Can Be Enabled or Disabled According to Actual Application Requirements |
| Baud Rate | 9600, 19200, 38400, 57600 (Default) |
| Output | Digital Output or Industrial 0.4 to 2 V Output; Unit: ppm; Temperature-Compensated Linear Signal |
| Operating Current | Average Current <1 mA; Peak Current <10 mA |
| Operating Humidity | 0 ~ 95% RH (Non-Condensing) |
| Operating Pressure | 800 ~ 1200 mbar |
| Optical Coating | High-Reflectivity Gold-Plated Layer |
Dimension (unit: mm)
Q1: What is the measurement range of the Methane (CH4) Gas Sensor?
A1: The Methane (CH4) Gas Sensor is available with a measurement range of 0–5% Vol or 0–100% LEL, depending on the selected model or application. It is designed for methane concentration monitoring in industrial and environmental gas detection systems.
Q2: Does the methane sensor respond to other gases?
A2: The methane sensor features high selectivity to methane (CH₄) and is designed to respond specifically to methane while minimizing interference from other gases.
Q3: Does the methane sensor require regular calibration?
A3: The methane sensor features excellent zero stability with no zero drift and does not require calibration during its service life under normal operating conditions.
Tips: What is the difference between 0–5% Vol and 0–100% LEL for methane detection?
% Vol indicates the actual methane concentration by volume, while % LEL indicates the percentage of methane's Lower Explosive Limit. For methane, 100% LEL is approximately 5% Vol, so a 0–5% Vol range corresponds approximately to 0–100% LEL.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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