L20 150m Remote Laser Methane Leak Detector for Building Inspection | TDLAS
150m Non-Contact Laser Methane Leak Detection
The L20 Remote Laser Methane Leak Detector is a handheld device designed for fast, non-contact detection of natural gas and methane leaks from a distance of up to 150 meters.
Using TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology, the detector measures methane through its characteristic laser absorption response, enabling remote inspection without direct contact with the suspected leak source.
With a 0.1-second response time, the L20 is designed to help inspection personnel quickly identify potential methane leaks in buildings, pipelines and hard-to-reach areas.
Smart Inspection & Data Management
The L20 supports Bluetooth connection with a mobile application, allowing users to record GPS-linked readings, inspection notes and photos for easier reporting and traceability.
Four scanning modes—High Sensitivity, Building, Pipeline and Auto—support different inspection scenarios.
A green dot sight helps operators accurately target detection areas in daylight.
Key Benefits
- Detection range up to 150 m
- 0.1 s response time
- Non-contact remote methane detection
- High-sensitivity TDLAS technology
- Configurable alarm threshold
- Visual and audible alarms
- Bluetooth mobile APP connectivity
- GPS-linked inspection records
- Four inspection modes
- Large LCD display
Applications
City Gas & Pipeline Inspection
For remote inspection of natural gas transmission and distribution pipelines, valves, joints and related infrastructure.
Building Inspection
Suitable for checking suspected gas leaks around buildings and other areas that are difficult or inconvenient to access directly.
Oil & Gas
For leak screening around pipelines, wellheads, processing equipment and storage facilities.
Industrial & Environmental Monitoring
Applicable to industrial gas inspections, landfill methane monitoring and natural gas emission surveys.
Parameter:
| Model |
L20P I L20
|
Detection Subject | Methane(CH4) |
| Measuring Principle | Laser Absorption Spectrum | Detection Laser Class | Class I Eye Safe |
| Resolution | 3 ppm·m | Indication Laser Class | Class IIIR No direct sight or instrument observation |
| Response Time |
0.05 s I 0.05 s I 0. l s
|
Enclosure Protection Class | IP68 |
| Maximum Detection Distance | 200m | 150m | Explosion-proof Grade | ATEX Exib IIC T4 Gb |
| Concentration Range | 0~100,000 ppm·m | Operatinging Temperature | -20 ~ 50 ºC |
| Power supply and endurance | Lithium battery > 12h | Operatinging Humidity | < 98%RH, no condensation |
| Main Unit Weight |
0.52 kg I 0.51 kg
|
Main Unit Dimension |
225 x 70 x 80 mm
|
Get in Touch
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