Trust the Experts

When precision and reliability matter, trust only TSI Authorized Partners: their factory-trained technicians are certified by TSI to test, calibrate, adjust, and repair your AeroTrak™ Particle Counter using original TSI parts and approved procedures.

Unauthorized service centers can only verify your instrument. TSI Authorized Partners go further—offering full calibration, firmware and software updates, and professional repairs, all performed by experts trained and supported directly by TSI.


Find Your Local Distibutor

Contact us if you have any questions about servicing your TSI AeroTrak™ Particle Counters