Experience the advance generation of
contamination control method


The Model 9303 features a sturdy yet lightweight high-impact injection-molded plastic design for easy handling. The instrument is easy to configure using an intuitive keypad. The instrument reports up to three particle sizes simultaneously. The middle channel is user selectable for either 0.5, 1.0, 2.0, or 2.5 μm. The Model 9303 complies with all the stringent requirements set forth in ISO 21501-4. It is calibrated with NIST traceable PSL spheres using TSI’s world-class Classifier and Condensation Particle Counters, the recognized standard for particle measurements. Backed with TSI’s long-standing reputation for high quality, the Model 9303 sets the standard for basic particle counters in the market today.

 Features and Benefits 

 AeroTrak 9303: 0.3 to 25 μm 
 0.1 CFM (2.83 L/min) flow rate 
 Up to three channels of simultaneous data 
 ISO 21501-4 compliant 
 USB serial output 
 Compatible with TrakPro Lite Secure 
 1,500 sample record storage 
 250 location labels 
 Large 3.2-inch (8.1-cm) display 
 On screen data review 
 User selectable middle size channel 
 Removable Li-ion battery 
 Intuitive keypad menus 
 High impact injection molded plastic 
 Lightweight - only weighs 1.3 lbs (0.58 kg) 


•    Tracking down particle contamination sources 
•    Classifying clean areas 
•    Looking for filter leaks 
•    Conducting IAQ investigations 

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