TSI`s CO2 and CO monitors, called Q-Check, are compact, hand-held devices that can simultaneously measure CO2 and CO. The Q-Check measures CO2 molecules by using a technique called non-dispersive infrared detection. CO measurements are made by using an electro-chemical or amperometric gas sensor. CO2 and CO sensors are located in a single light-weight wand for survey work. The Q-Check makes real-time measurements and has the ability to take a sample and calculate its statistics–mean, maximum, minimum, and sample duration. The statistics can be printed to an optional portable printer.
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