The new multi-perpose portable sniffer SELMA Duo for walking and vehicle surveys (Methane + Ethane)
We Invent to Prevent.

SELMA Dome G5

New generation vehicle-mounted remote laser methane detector
 
 
 

Remote detection of methane leaks at a distance of up to 1 km

Introducing SELMA Dome G5, our latest vehicle-mounted remote laser methane detector. Designed for mobile inspections, it detects gas leaks up to 1000 meters away with an eye-safe laser that is harmless to humans and animals. Just mount it on the roof of your car or truck and begin your survey. For even greater efficiency, SELMA Dome G5 can be paired with SELMA MPB laser sniffer, which increases sensitivity and provides full control over the inspection route.

SELMA Dome G5 key features and advantages

  • Detection range up to 1000 m

  • Max vehicle speed 50 km/h

  • Precisely calibrated to detect methane with a sensitivity of 5 ppm×m

  • Detects methane leaks even through window glass

  • Installation on any type of chassis

  • Can be paired with SELMA MPB laser sniffer

  • Horizontal detection angle 360°

  • Simple inspection process involving only driver or operator

  • Human-safe laser light

  • Built-in GPS receiver for accurate leak location

How SELMA Dome G5 works

SELMA Dome G5 utilizes TDLAS technology

TDLAS (Tunable Diode Laser Absorption Spectroscopy) is a technology that enables precise gas detection using a tunable diode laser. The laser emits a narrow beam of light at a wavelength that matches the absorption profile of the target gas. As the beam passes through the gas, some of the light is absorbed by its molecules. A sensor then captures the reflected light, and by analyzing how much was absorbed, the system determines the gas concentration.

Operating principle of the laser methane detector
As the beam passes through the gas, some of the light is absorbed by its molecules. A sensor then captures the reflected light, and by analyzing how much was absorbed, the system determines the gas concentration.
SELMA Dome G5 utilizes TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology that enables precise gas detection using a tunable diode laser. The laser emits a narrow beam of light at a wavelength that matches the absorption profile of the target gas. As the beam passes through the gas, some of the light is absorbed by its molecules. A sensor then captures the reflected light, and by analyzing how much was absorbed, the system determines the gas concentration.
SELMA Dome G5 utilizes TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology that enables precise gas detection using a tunable diode laser. The laser emits a narrow beam of light at a wavelength that matches the absorption profile of the target gas. As the beam passes through the gas, some of the light is absorbed by its molecules. A sensor then captures the reflected light, and by analyzing how much was absorbed, the system determines the gas concentration.
SELMA Dome G5 utilizes TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology that enables precise gas detection using a tunable diode laser. The laser emits a narrow beam of light at a wavelength that matches the absorption profile of the target gas.

How SELMA Dome G5 works

How SELMA Dome G5 works

Where SELMA Dome G5 applies

SELMA Dome G5 is designed for monitoring natural gas leaks in urban environments as well as on gas storage facilities and pipelines
  • City inspections

  • Countryside inspections

  • Underground gas storages

  • Transportation gas pipelines

Where SELMA Dome G5 applies

SELMA Dome G5 is designed for monitoring natural gas leaks in urban environments as well as on gas storage facilities and pipelines
Underground
gas storages
Countryside inspections
Transportation gas pipelines
City
inspections

Why leak detection matters

Continuous methane monitoring, especially in urban areas, is essential not only for safety but also for environmental protection. Methane is one of the most potent greenhouse gases, trapping heat much more efficiently than carbon dioxide. Even small leaks, if undetected, can increase and have a serious impact on the climate. This is why regular monitoring is important: it helps to detect leaks as soon as they occur, prevent dangerous situations and control emissions in accordance with environmental regulations.

FAQ

Honest answers to important questions

Contact us

You can order the equipment or ask questions here