TDL 300 | Tunable Diode Laser

Handheld Gas Detector

  • ICI’s T.D.L. 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 T.D.L. 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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  • 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
  • Temperature: -20 °C ~ 50 °C
  • Humidity: 0 % ~ 99 % RH (No Dews)
  • Storage Temperature: -20 °C ~ 60 °C
  • Explosion-Proof: Type Intrinsically Safe
  • Explosion-Proof Grade: EX ib IIB T4 Gb
  • Ingress Protection: IP54
  • Weight: 1.3 kg
  • Voltage: DC 3.7 V (LIC18650-22 3 Batteries)
  • Display: LCD Screen
  • Operation Time: 8 Continuous Hours
  • Alarming Method: Visual & Audible Alarm
  • Alarm Threshold: Adjustable
  • Laser Safety: Detection
  • Battery Charger
  • Shoulder Strap


  • Ici Tdl 300 Data Specifications

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  • Ici Tdl 300 Operational User Manual

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Included Accessories

  • IR Flash Software
  • Windows 30-bit SDK
  • Linux SDK (x86, x64 and ARM)


  • Methane Detection
  • Handheld Applications
  • Pipeline Inspections
  • Industrial Monitoring
  • Petrochemical Monitoring
  • Scientific Research
  • Research & Development

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