LaserGas II OP

LaserGas™ II Open Path is a compact, high performance gas monitor for ambient long distance monitoring. The LaserGas™ II OP consists of a transceiver and retro-reflector unit.

The retro-reflector unit consists of one or several cube corners in a weather proof enclosure, which reflects the light back to the transceiver. The detector collects the returned light for calculation of the gas concentration.

An optional auto-alignment unit can also be applied to ensure consistent alignment over time.

  • Easy to install
  • Low need for maintenance
  • Response time down to 1 second
  • No cross interference from other gases
  • Very low detection limits
  • Unaffected by fog or rain down to <1% transmission
  • Wide range of detectable gases
  • Mounted on our proprietary x/y alignment platform (goniometer). Adapters for fixed installation on platforms or for tripod use are available.
  • Auto-alignment unit available
  • Equipped also for hazardous areas


  • Oil and gas industry
  • Petrochemical refineries
  • Landfill sites
  • Chemical plants
  • Steel and aluminium industry
  • Fire protection
  • Traffic exhaust
  • Agriculture
  • ..and more


  • CH4
  • CO ppm
  • H2S
  • H2S + CO2
  • HCl
  • HCl + CH4
  • HF
  • NH3