The SOLAIR 3100 portable airborne particle counters incorporate our Extreme Life Laser Diode Technology sensor to produce the industry's longest laser diode life of 20+ years MTTF based on continuous 24/7 operation). Using a new, lighter extended-life battery and external AC adapter, the SOLAIRs are even more portable. The SOLAIR features one of the industry’s best User Interfaces (UI) to configure and operate the instrument with intuitive ICON-driven screens and menus that are simple, easy to learn and use.
Unit of Measure



N/A Lighthouse SOLAIR

Standard Particle Size Range

N/A 0.3 to 25.0 µm

Flow Rate

N/A 1.0 ft³/min28.3 L/min

Display Size

N/A 5.7 in


N/A Color Thin Film Transistor (TFT) Touch Screen

Communication Interfaces

N/A Ethernet RS-485 Universal Serial Bus (USB) Universal Serial Bus (USB) Flash Drive

Language Support

N/A Chinese English French German Italian Japanese Korean Russian Spanish


N/A 2 Years

Construction Material

N/A Stainless Steel

Industry Standards/Certifications

N/A International Organization for Standardization (ISO 21501-4)


N/A Cleanroom Monitoring Compressed Gas Monitoring (with High Pressure Controller) Facility Certification Testing Multi-Point Facility Monitoring (with 6 or 32 port Manifold System) Tool and Equipment Testing Trend Analysis



  • Simultaneous Display of up to 8 Particle Sizes
  • 21 CFR Part 11 Compliant Secure Data Transfer via USB Flash Drive
  • Extreme Life Laser Diode Technology >20-year MTTF Laser Lifespan
  • Thermal Printer
  • Designed for ISO 21501-4 Compliance: Unit-to-Unit Accuracy & Repeatability Assured
  • Multiple Communication Interfaces - USB, RS-485, Ethernet and USB Flash Drive
  • 3000-record Data Storage Memory
  • 50-record Configurable Recipe Database
  • User-Definable Printouts
  • Open Architecture Connectivity with OPC Server
  • Report Wizard for Cleanroom Pass/Fail Reports: FS-209E, ISO-14644-1 or EU GMP Annex 1



  • User Friendly Interface with Multiple Languages
  • International Support
  • Easy Integration to External Systems with OPC Server

Additional Information

Additional Information

N/A The SOLAIR can store up to 3,000 records of particle count data from up to 8 particle channels and the configurable recipe database can store up to 50 recipes for sampling and reports. All data can be quickly and reliably transferred to a computer, a Facility Monitoring System or a Building Automation System. Secure data transfer (per 21 CFR Part 11) to a USB Flash Drive can be accomplished by using the Lighthouse Secure Data transfer feature and LMS Express or Express RT software to read it. Flexible communications with these instruments is made possible by the integrated Ethernet, RS-485, USB and USB Flash Drive interfaces. SOLAIRs are designed, manufactured and calibrated to ISO 21501-4 to ensure particle counting accuracy.

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~Rudolf Flesch

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