AirNet® II 201 Particle Sensor

The AirNet® II 201 Particle Sensor meets the specifications of ISO 21501-4 to measure the size and number of particles suspended in the air for real-time monitoring of defect-causing particles. A simple and cost-effective way to monitor your cleanroom, the Airnet II Particle Sensor provides unparelled performance with data transmission capabilities for remote monitoring. Versatile power options combined with an ultra-small footprint makes the Airnet II Particle Sensor (2-Channel) easy to install right where you need it. The unit can be configured to accept distributed power from an in-house system, local power plugin, or power over ethernet (PoE). Data integrity is maintained through the use of a data queue feature that continues to gather data even if communication is lost due to a power outage. To ensure proper flow conditions and vacuum system operation, these units incorporate a Dynamic Flow Sensing system that will alarm with a 15% change in flow conditions. For situations where sampling is required during the vaporized hydrogen peroxide (VHP) sterilization process, an optional VHP-compatible unit is available for a simple installation without complex valving.


Proven technology provides reliable and accurate data
Allows for immeditate reaction to particle contamination events
A low-cost solution for multipoint monitoring
Interfaces with Facility Net, Pharmaceutical Net and FacilityPro Software for comprehensive management of cleanroom conditions
A small footprint and flexible mounting options make it easy to install in cleanrooms and mini-environments
A laser diode (LD) drastically reduces the need for maintenance and extends product lifecycle
Automatic laser shutdown reduces laser failures
Data queue maintains data integrity when communication is lost
Optional 4-20 mA output for integration with existing systems to help you understand your environment and communicate with other systems
Optional XR coating protects sensors against corrosive or oxidizing vapors in VHP sterilization processes

Features & applications


4 channels
0.2, 0.3, 0.5 and 1.0?m size range
0.1 CFM flow rate
Interfaces with object linking and embedding (OLE) for process control (OPC) communications, Modbus communications and optional 4-20 mA output
Chemical-resistant polycarbonate (PC) enclosure
Low sample point cost
Small enough for use in remote locations
Includes system validation documentation


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

Available accessories

All available accessories


Sample Tubing (0.1 CFM)

Pack of 10 extension tubes with male and female Luer fittings on opposite ends for sampling from IV bags or containers larger than 6" tall. Specs: 18-gauge, 2.7" long.


Facility Net

Facility Net provides a solution for comprehensive environmental monitoring, including a real-time and historical data display. Compatible Particle Measuring Systems particle counters and molecular contamination monitors, as well as various third-party products.


High-Pressure Diffuser (0.1 CFM)

The High-Pressure Diffuser lets you count particles in high-pressure gas lines by taking gas at pressures between 40 and 100psi and reducing it to a level acceptable to particle counters designed for atmospheric pressure.


IsoAir® Protection System

The IsoAir® Protection System protects your particle counter with a polycarbonate (PC) cover and stainless steel enclosure so you don't have to remove it from its environment. Featuring a capped probe, the IsoAir Protection System even stays protected during sterilization.


Isokinetic Sampling Probe

The Isokinetic sampling probe allows you to move sample collection to where you need it most.

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