Posted in | Control Systems

Providing Unparelled Performance with Data Transmission with the Airnet II 4 Channel Air Particle Sensor

Sensitivity range: 0.2 to 10.0 µm

The Airnet® II 4 Channel Air Particle Sensor, available from Particle Measuring Systems, meets the ISO 21501-4 specifications in order to measure the number and size of particles suspended in the air and perform a real-time monitoring of defect-causing particles.

The Airnet® II Particle Sensor makes cleanroom monitoring simple and cost-effective, and offers unparalleled performance and data transmission capabilities for remote monitoring. An ultra-small footprint and versatile power options make the Airnet® II Air Particle Sensor easy to install in the right place where users require it.

The units can be easily configured to obtain distributed power from power-over-ethernet (PoE) or from an in-house system. The use of a data queue feature helps maintain data integrity and gather data even when there is no communication. These units include a Dynamic Flow Sensing system that will sound an alarm when there is a 15% change in flow conditions in order assure correct flow conditions and vacuum system operation.


The key features of the Airnet® II 4 Channel Air Particle Sensor are as follows:

  • 4 channels
  • 0.1 or 1.0 CFM flow rate
  • 0.2, 0.3, 0.5, 1.0, 5.0, and 10.0 µm size range
  • Chemical-resistant polycarbonate (PC) enclosure
  • Small footprint make it easy to use in remote locations
  • Low sample point cost
  • Interfaces with Modbus communications, object linking and embedding (OLE) for process control (OPC) communications, and optional 4-20 mA output


  • Enables immediate reaction to particle contamination events
  • Interfaces with Pharmaceutical Net, Facility Net, and FacilityPro Software for complete management of cleanroom conditions
  • Proven technology offers accurate and reliable data
  • A low-cost solution for multipoint monitoring
  • Automatic laser shutdown decreases number of laser failures
  • A laser diode (LD) significantly decreases the need for maintenance and increases product lifecycle
  • Easy to clean/wipe down and designed to reduce particle traps
  • Real-time monitoring of defect-causing particles
  • Easy utilization of OPC or Modbus TCP communications
  • Power-over-Ethernet (PoE) simplifies installations
  • A small footprint and versatile mounting options make it easy to install in mini-environments and cleanrooms
  • Optional 24 VDC input / 4-20 mA output configurations also available


The main applications of the Airnet® II 4 Channel Air Particle Sensor are as follows:

  • Cleanroom monitoring
  • Trend analysis
  • Dedicated monitoring of critical locations
  • Multi-location monitoring
  • Statistical process control

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