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BL-CH4 Drone Methane Detector
Drone methane detection sensor BL-CH4
The BL-CH4 is our flagship drone-mounted laser methane detection sensor, designed for lightweight and efficient deployment. Featuring an all-in-one integrated design, the BL-CH4 combines five essential modules: a laser receiver, laser indicator, laser emitter, RGB camera, and laser rangefinder. Its advanced sensor array, powered by intelligent algorithms, enables rapid detection and pinpointing of methane sources—allowing operators to identify leaks quickly and respond with timely action..
BL-CH4 Drone Methane Detector
BL-CH4 SPEC SHEET
Model: BL-CH4
Detection Target: Methane and gases containing methane
Detection Method: Tunable Diode Laser Absorption Spectroscopy
Gimbal Stabilization: YAW + PITCH + ROLL
Gimbal Type: DJI Xport
Pitch: +30° to -90° / Roll ±135°
Working Distance: Up to 300m (according to different reflector and conditions)
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, Terrain Follow Infrared Detection laser: Class 3r, avoid direct laser to eyes
Green Indication laser: Class 3r, aviod direct laser to eyes Compatible Platform: DJI Matrice 300RTK, 350 RTK and customized Housing: Aluminum alloy Protection Level: IP 54
Technology
Tunable Diode Laser Absorption Spectroscopy (TDLAS)
Wide-Area Coverage & High Efficiency
- Drones can cover large and remote areas quickly, including pipelines, wellheads, landfills, and storage tanks. - Reduces time and manpower compared to ground-based inspections. Real-Time, Non-Contact Detection - Equipped with laser or TDLAS (Tunable Diode Laser Absorption Spectroscopy) sensors for accurate, long-distance, non-contact gas detection. - Enables fast detection of methane leaks without the need for close physical access. Enhanced Safety - Minimizes the need for personnel to enter hazardous or hard-to-reach environments (e.g., high-pressure zones, toxic gas areas). - Reduces exposure to risks like explosions, methane, H₂S, or oxygen-deficient zones. High Accuracy & Sensitivity - Advanced sensors detect even trace levels of methane, with results often displayed in ppm·m (parts per million multiplied by distance). - Suitable for both localized leak detection and wide-area scanning.
TDLAS technology
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.
Software Introduction
  • CH4 Assistant APP
  • CH4 Cloud Platform
From the RC application interface, select the CH4 Assistant App.
After entering your account and password, you can activate the single-user mode.
Application Scenario
  • Pipeline Leakage Detection
    Pipeline Leakage Detection
  • Refinery Detection
    Refinery Detection
  • Offshore Gas Detection
    Offshore Gas Detection
  • Chemical Plants Gas Inspection
    Chemical Plants Gas Inspection
  • Landfill Gas Inspection
    Landfill Gas Inspection
  • Fire Warning
    Fire Warning
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