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TSI’s commitment to our customers’ success, our dedication to research, and our drive to make the world a better place have always been part of our history.

The CO2 and CO Calibration Kit 8938 provides the essential standard gases needed to verify and maintain the accuracy of your indoor air quality instruments. Designed specifically for TSI IAQ probes and meters, this kit includes calibration gas with 1000 ppm CO2 and 35 ppm CO...

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