Tunable Diode Laser Spectroscopy | TDLAS


  • ICI’s Tunable Diode Laser Absorption Spectrometer (TDLAS) is an innovative long-range detector which allows methane gas (CH4) to be detected at distances of up to 50 m in as little volume as 1 pmm.m.
  • Detects methane by emitting infrared light and examining reflected light density.
  • It can be fixed mounted or attached to an aerial vehicle.
  • Combine the tunable laser with ICI’s line of thermal devices to gather infrared data for temperature analysis.
  • Ideal for use in industrial, commercial, and research environments.

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tdlas tunable diode laser absorption spectrometer
  • Image of red star Ultra low power consumption
  • Image of red star Detection distance up to 50 m
  • Image of red star High stability
  • Image of red star Fast response
  • Image of red star UAV/UAS integration


  • Target Gas: Methane (CH4)
  • Measurement Range: 0 pmm.m to 40,000 pmm.m
  • Detection Distance: 0.5 m (1.6’) – 50 m (164’)*
  • Minimum Resolution: 1 ppm.m
  • Response Time: 0.5 seconds
  • Operating Pressure: 68 kPa – 115 kPa
  • Operation Range: -20 °C to 50 °C (-4 °F to 122 °F)
  • Storage Range: -40 °C to 60 °C (-40 °F to 140 °F)
  • Humidity: 98%
  • Dimensions: 120 mm x 97 mm x 97 mm (L x W x H ± 0.5 mm)
    (4.72” x 3.82” x 3.82” (L x W x H ± 0.02”))
  • Power: DC 4.2V – 5V, 2.5 W – 3.5 W
  • Weight (without lens): 664 g (1.46 lbs)
  • Interface: Mini USB0
  • Communication Port: Uart 3.3 V TTL
  • Basic Tolerance: ± 10 % @ 1000 pmm.m



  • Ici Tdlas Data Specifications

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Options / Accessories

  • Sensor Control Module integration
  • UAV/UAS integration
  • IR Flash Pro software


  • Methane detection
  • Gas leak detection
  • UAV integration
  • Pipeline inspections
  • Industrial monitoring
  • Petrochemical monitoring
  • Scientific research
  • Research & development
  • Space reseach & exploration

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