LaserWarn™: Open-Path Chemical Detection System

Winner of the Milipol Innovation Award for Crisis Management
Winner of the Prism Award for Environmental Monitoring

Block Engineering's LaserWarn is an open path chemical gas detection system based on our patented quantum cascade laser technology. LaserWarn detects chemical threats over a coverage area of thousands of square meters, and is available in both indoor and outdoor versions.

Eye-safe laser beams and low-cost reflectors provide real-time, 24/7 early warning of Toxic Industrial Chemicals (TICs), Chemical Warfare Agents (CWAs), and other chemicals. The system configuration is tailored to each site, and can be visually blended into existing architecture and interior design. System updates can be provided in response to emerging threats.

Multiple hazardous chemicals can be detected within seconds, even in chemically "noisy" environments. The system requires no consumables, and is low maintenance compared to conventional networks of point sensors. The system is available in a ruggedized IP66-certified version for harsh environments, as well as a lighter version for indoor use.

The system features a multi-level Graphical User Interface, providing simple red/green or more detailed information screens. Additionally, XML data output streams directly into existing command + control displays.

Key Benefits & Advantages

  • Operation in selected ranges in the mid-infrared spectrum (7-13 µm) where toxic gases have strong and unique spectral signatures
  • Greatly increased sensitivity, aiming accuracy, and distance compared to conventional infrared systems
  • 24/7 indoors or outdoors operation
  • Expandable library of chemical threats to match specific operational requirements
  • No consumables required, allowing for minimal maintenance
  • Eye-safe laser beams allow for operation in areas with people
  • Fast readings allow for rapid detection and immediate warning alerts

LaserWarn provides advantages over competing technologies

The Quantum Cascade Laser-based technology behind LaserWarn provides significant advantages over competing technologies. LaserWarn provides much larger detection distances and greater sensitivity than conventional IR and FTIR systems. The system detects a wide range of gases, and requires no consumables.

Technology Standoff Distance Number of Gases Consumables Detection Sensitivity
Block's LaserWarn QCL System Very Long Many None High
Open Path FTIR Limited Many Liquid Nitrogen Medium
Open Path NIR Limited Limited None High
Open Path IR Very Long Few None Medium
Distributed Sensors Short Many High Maintenance High

To download a datasheet with more detail on the LaserWarn, please click here (PDF, 5 MB).

If you would like to discuss how the LaserWarn can help with your application needs, please contact us.