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Water-resistant case holds tri-sensors for QUESTemp 3x and 4x Series, QT-32, QT-34, QT-36, QT-44, QT-46, QT-48N, 2-inch globes and accessories

Purge filter assembly for use with AeroTrak®+ 0.1 CFM Remote Particle Counters.

The Dummy Sensor is used to seal a socket when no sensor is present. This is an accessory for EVM-7 Environmental Monitor.

Pack of 5 replacement PM sensors for the BlueSky™ Air Quality Monitor.

PM Sensor

Accessory for certain AeroTrak and BioTrak products

Accessory for certain VelociCalc and Airflow Instruments products

Accessory for certain P-Trak products

Accessory for certain Airflow Instruments products

Accessory for certain VelociCalc and Airflow Instruments products