BlueSky & TSI: Over 50 years of air quality experience

Unlike other small, low-cost air quality monitors on the market, BlueSky^TM Air Quality Monitors come factory-calibrated to improve the readings of the devices. BlueSky monitors also come with self-diagnostics to ensure that the data collected is, and remains, reliable.

Based in Minnesota, TSI has been in particle research for over 50 years. Our DustTrak^TM Environmental Monitors and now our BlueSky monitors help you measure air quality, identify or alleviate concerns, and report the findings in your area to keep people and communities safer, healthier, and happier.