BL-CH4 UAV Methane Detection Sensor
The application of drone-based laser methane detection systems in the oil and gas industry is becoming increasingly widespread. These systems are significantly enhancing the efficiency and accuracy of industry operations, contributing to the sector's development.
For gas detection like oil and gas pipeline inspection, refinery inspection, industrial park, landfill, BLV Tech is committed to meet the complex operation needs of customers and providing unparalleled efficiency and accuracy. Now BLV tech has launched a flagship drone payload, BL-CH4, a lightweight drone-based laser methane detection sensor. BL-CH4 adopts an integrated design, which integrates five modules: laser receiver, laser indicator light, laser emission, RGB camera and laser ranging. Its advanced sensor arrays, combined with sophisticated algorithms, quickly identify methane sources, helping to quickly spot leaks and take emergency response measures.
In gas inspection, For large area detection, BL-CH4 adopts unique automatic rotation detection. The rotation angle of different angles can be selected to cover the monitoring different sizes of area. It can realize automatic, all-round and efficient inspection.
Tunable Diode Laser Absorption Spectroscopy (TDLAS)

Superior Sensitivity
Sensitive to methane Only, contact-based and closed-path TDLAS for quantitative methane detection.
Short Response Time
Built-in laser detection module allows response to the concentration changes within 5 milliseconds.
Long Distance Support
Support to detect the methane leakage up to 300m.
Product Application Advantage
- 300 meters test distance
- real time data processing
- 5ms fast response
- Three axis enhanced stability head
- Accurate location of the leak point
- Cloud platform data is updated synchronously
Pain Points For The Traditional Detection
- Difficult to detect low concentrations of methane leak in large or complex environments.
- Time-consuming on manual operation and on-site sampling.
- The covered area is limited for a handheld devices or fixed monitoring station.
- Risk-taking to detect in a remote or hazardous areas.
Advantages of Drone Methane Technology By BL-CH4
- Based on drone technology, it can fly and detect all kinds of scenarios without limitation efficiently and accurately.
- TDLAS technology enables the system with high performance in sensitivity and quick response speed, also support the workin distance up to 300m.
- Diversification on software supports both APP / Cloud Platform for the flight monitoring and management.
BL-CH4 UAV Methane Detection Sensor
The application of drone-based laser methane detection systems in the oil and gas industry is becoming increasingly widespread. These systems are significantly enhancing the efficiency and accuracy of industry operations, contributing to the sector's development.
For gas detection like oil and gas pipeline inspection, refinery inspection, industrial park, landfill, BLV Tech is committed to meet the complex operation needs of customers and providing unparalleled efficiency and accuracy. Now BLV tech has launched a flagship drone payload, BL-CH4, a lightweight drone-based laser methane detection sensor. BL-CH4 adopts an integrated design, which integrates five modules: laser receiver, laser indicator light, laser emission, RGB camera and laser ranging. Its advanced sensor arrays, combined with sophisticated algorithms, quickly identify methane sources, helping to quickly spot leaks and take emergency response measures.
In gas inspection, For large area detection, BL-CH4 adopts unique automatic rotation detection. The rotation angle of different angles can be selected to cover the monitoring different sizes of area. It can realize automatic, all-round and efficient inspection.
Tunable Diode Laser Absorption Spectroscopy (TDLAS)

Superior Sensitivity
Sensitive to methane Only, contact-based and closed-path TDLAS for quantitative methane detection.
Short Response Time
Built-in laser detection module allows response to the concentration changes within 5 milliseconds.
Long Distance Support
Support to detect the methane leakage up to 300m.
Product Application Advantage
- 300 meters test distance
- real time data processing
- 5ms fast response
- Three axis enhanced stability head
- Accurate location of the leak point
- Cloud platform data is updated synchronously
Pain Points For The Traditional Detection
- Difficult to detect low concentrations of methane leak in large or complex environments.
- Time-consuming on manual operation and on-site sampling.
- The covered area is limited for a handheld devices or fixed monitoring station.
- Risk-taking to detect in a remote or hazardous areas.
Advantages of Drone Methane Technology By BL-CH4
- Based on drone technology, it can fly and detect all kinds of scenarios without limitation efficiently and accurately.
- TDLAS technology enables the system with high performance in sensitivity and quick response speed, also support the workin distance up to 300m.
- Diversification on software supports both APP / Cloud Platform for the flight monitoring and management.
BL-CH4 Specs
Model | BL-CH4 |
Detection Target | Methane and gases containing methane |
Detection Method | Tunable Diode Laser Absorption Spectroscopy |
Gimbal Stabilization | Yaw, Pitch, and Roll |
Gimbal Type | DJI Xport |
Pitch | +30° to -90° Roll ±135° |
Working Distance | Up to 300m |
Laser Rangefinder | Up to 1000m |
Sensitivity | 5ppm*m |
Response Speed | 5ms |
Measurement Accuracy | ±10% (100~50000 ppm*m) |
Coordination Function | Real-time coordinate support |
Route Function | KMZ, KML import |
Infrared Detection laser | Class 3r, avoid direct laser to eyes |
Sampling Frequency | 500KHz |
Housing | Aluminum alloy |
Ingress Protection | IP54 |
DJI Matrice 350 RTK
DJI Matrice 300 RTK
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