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TDL 300 | Tunable Diode Laser

TDL 300 | Tunable Diode Laser

Handheld Gas Detector

  • ICI’s TDL 300 (Tunable Diode Laser) is an advanced handheld system which detects methane gas (CH4) at distances of up to 100 meters at volumes of 0 ppm.m to 100,000 ppm.m.
  • Methane leaks are located by pointing the laser beam towards the suspected leak, or along the survey line and examining reflected light density.
  • Our TDL 300 detector is ideal for inspections of distribution pipelines, petrochemical industry refineries, chemical plants, metallurgical production lines, other places that may produce gas leakage.

Featured Product Videos

  • red star icon Advanced tunable laser technology
  • red star icon Detection distance up to 150 meters
  • red star icon High sensitivity and quick response time
  • red star icon Unmatched gas detection
  • red star icon Visual and audible alarms
  • red star icon Suitable for multiple industries


  • Target Gas: Methane (CH4)
  • Sensitivity: 5 ppm.m
  • Measurement Range: 0 pmm.m to 100,000 pmm.m
  • Detection Distance: 100 m
  • Response Time: T90 < 0.05 seconds
  • Minimum Resolution: 5 ppm.m
  • Response Time: T90 < 0.05S
  • Operation Range: -20 °C to 50 °C (-4 °F to 122 °F)
  • Storage Range: -20 °C to 60 °C (-4 °F to 140 °F)
  • Humidity: 0 % ~ 99 % RH (non-condensing)
  • Dimensions (without lens):
    • 220 mm x 80 mm x 90 mm (L x W x H ± 0.5 mm)
    • (8.66” x 3.15” x 3.54” (L x W x H ± 0.02”))
  • Power: DC 3.7V
  • Operation Time: 8 hours
  • Weight (with battery): 600 kg (1.33 lbs)
  • Screen: color LCD
  • Explosion-Proof Grade: EX ib IIB T4 Gb
  • IP Rating: IP66
  • Alarming Method: visual and 85 dB @1m audible alarm
  • Laser:
    • Detection: Class 1
    • Spotter: Class 3R
  • Unit Type: ppm.m, LEL.m, and VOL.m


Options / Accessories

  • Telescope sight
  • Bluetooth support


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