TDL 300 | Tunable Diode Laser

Handheld Gas Detector

  • ICI’s TDL 300 (Tunable Diode Laser) is an innovative portable and hand held system which allows methane gas (CH4) to be detected at distances of up to 25 m at a volume as small as 5 pmm.m.
  • Methane leaks are located by pointing the laser beam towards the suspected leak, or along the survey line.
  • Detects methane by emitting infrared light and examining reflected light density.
  • Our TDL 300 detector is ideal for use in industrial, commercial and research environments where it can go any where an inspector can and beyond!

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ici tdl 300 front left view
  • Image of red star Unmatched gas detection
  • Image of red star Visual and audible alarm
  • Image of red star High stability
  • Image of red star Fast response
  • Image of red star Low power consumption
  • Image of red star Compact/portable


  • Target Gas: Methane (CH4)
  • Sensitivity:
    Distance ≤ 10 m, Sensitivity: 5 ppm.m
    Distance ≤ 25 m, Sensitivity: 10 ppm.m
  • Measurement Range: 0 pmm.m to 50,000 pmm.m
  • Detection Distance: 80 m
  • Minimum Resolution: 5 ppm.m
  • Response Time: T90 < 0.05S
  • Operation Range: -20 °C to 50 °C
  • Storage Range: -20 °C to 60 °C
  • Humidity: 0 % ~ 99 % RH (non-condensing)
  • Power: DC 3.7V
  • Battery: LIC18650-22, 3 Batteries
  • Operation Time: 8 continuous hours
  • Weight (with battery): 1300 kg
  • Screen: LCD
  • Explosion-Proof: Type Intrinsically Safe
  • Explosion-Proof Grade: EX ib IIB T4 Gb
  • IP Rating: IP 54
  • Alarming Method: visual and audible alarm
  • Alarm Threshold: Adjustable
  • Laser: Detection Class 1, Spotter Class 3R
  • Battery charger
  • Shoulder strap



  • Ici Tdl 300 Data Specifications

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  • Ici Tdl 300 Operational User Manual

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Options / Accessories

  • IR Flash Software
  • Windows 32-bit SDK
  • Linux SDK (x86, x64 and ARM)


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