Airy Technology®Remote Particle Counters Remote Particle Counters R2000 Series Model R2301 0.3 – 25.0 µm @ 0.1 CFM MORE INFO Model R2501 0.5 – 25.0 µm @ 0.1 CFM MORE INFO Model R2301P 0.3 – 25.0 µm @ 0.1 CFM with internal pump MORE INFO Model R2501P 0.5 – 25.0 µm @ 0.1 CFM with internal pump MORE INFO Model R2510 0.5 – 25.0 µm @ 1.0 CFM MORE INFO Model R2510-2 0.5 – 25.0 µm @ 1.0 CFM MORE INFO R5000 Series Model R5301 0.3 – 25 µm @ 0.1 CFM MORE INFO Model R5301P 0.3 – 25 µm @ 0.1 CFM with internal pump MORE INFO Model R5501 0.5 – 25 µm @ 0.1 CFM MORE INFO Model R5501P 0.5 – 25 µm @ 0.1 CFM with internal pump MORE INFO Model R5510 0.5 – 25 µm @ 0.1 CFM MORE INFO R9000 Series Model R9301 IoT 0.3 – 25.0 µm @ 0.1 CFM MORE INFO Model R9501 IoT 0.5 – 25.0 µm @ 0.1 CFM MORE INFO Model R9510 IoT 0.5 – 25.0 µm @ 1.0 CFM MORE INFO Model R9301P IoT 0.3 – 25.0 µm @ 0.1 CFM with internal pump MORE INFO Model R9501P IoT 0.5 – 25.0 µm @ 0.1 CFM with internal pump MORE INFO Model R9300P IoT 0.5 – 25.0 µm @ 0.1 CFM with internal pump MORE INFO