check Response time down to one second
check Suitable for high temperatures
check Multiple configurations

LaserDust™ Medium Path (MP), Long Path (LP), and Extra Long Path (XLP) Monitors are compact, optical dust monitors for true continuous in-situ measurement of dust concentration or opacity.

The monitors are designed for measurement across pipes, stacks and ducts with typical path lengths of 0.5 – 10 m.
LaserDust™ Monitors use a transmitter/receiver configuration to measure the dust concentration along the optical line of sight. Our true non-contact approach is superior to point type dust meters.

With innovative laser technology the LaserDust™ combines two measurement principles in one instrument.

  • At low dust levels it operates with forward scattered light technology:
    The incident laser light is scattered by dust particles and collected onto a solid-state sensor for dust quantification. This highly sensible mode enables detection limits of < 0.5 mg/Nm3 and is unaffected by dust depositing on the windows.
  • At high dust levels the LaserDust™ will measure transmittance or opacity:
    Light absorption by dust particles is captured by a 2nd sensor.
Certifications and approvals
  • IECEx/ATEX Zone 2
  • Can measure dust concentration or opacity
  • Response time down to one second
  • Suitable for high temperatures
  • Cross stack measurement up to 10 m
  • High dynamic range (mg or g with one instrument)
  • Scattered light detection for high sensitivity
  • Non-contact measurement
  • No moving parts
  • Aluminum smelters and steel works
  • Waste incinerators, power plants or cement kilns
  • Scrubber and filter optimization
  • Bag house filter surveillance
  • Dust explosion prevention
  • …and more
Customer benefits
  • In-situ monitoring
  • Highly reliable real time analyzer
  • Low maintenance cost
  • Reduce emission to the environment
  • Easy to install and operate
  • Reduce daily operation costs
  • Optimize process
  • Well proven measurement techniques