The new multi-perpose portable sniffer SELMA Duo for walking and vehicle surveys (Methane + Ethane)
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We Invent to Prevent.
We Invent to Prevent.
+39 030 353-14-23
Via Lorenzo Bernini 12, 25010 San Zeno Naviglio BS

SELMA Mini

Compact and lightweight remote laser methane detector for vehicle mounting
 
 
 

Easy-to-install battery-powered natural gas leak detector

Simplify and speed up natural gas leak inspections with the SELMA Mini. Easily mount it on the roof of your vehicle and follow the inspection route. The SELMA Mini's wireless optical module detects gas leaks up to 60 meters away with an eye-safe laser. For increased sensitivity, use the SELMA Mini paired with the SELMA MPB laser sniffer.

SELMA Mini key features and advantages

  • Detection range up to 60 m

  • Max vehicle speed 60 km/h

  • Detects methane with a sensitivity of 5 ppm×m — even through window glass

  • Built-in GPS receiver and real-time video camera with zoom for accurate leak location

  • Magnetic mount for any metal surface

  • Can be paired with SELMA MPB laser sniffer

  • Simple inspection process involving only driver or operator

  • Horizontal detection angle 360°

  • Controlled from a tablet PC via Wi-Fi

  • Battery life up to 10 hours

How SELMA Mini works

SELMA Mini 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 Mini 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 Mini 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 Mini works

How SELMA Mini works

Where SELMA Mini applies

SELMA Mini 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 Mini applies

SELMA Mini 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.
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