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The Testo 535 is the most efficient CO2 measuring instrument for measuring indoor air quality. CO2 is used as an indicator when assessing indoor air quality. If the CO2 in indoor air is too high (1000 parts per million or more) the air feels “stuffy and stale”, a symptom of Sick Building Syndrome (SBS). Bad air quality in rooms can also lead to fatigue, poor concentration and illness among employees and is caused, in many cases, by insufficient ventilation.
The CO2 concentration in demand controlled ventilating (DCV) systems is used to regulate the supply of fresh air. Regular checks on these systems using the Testo 535 CO2 measuring instrument makes sense.
Testo 535 Features:
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Permanently attached probe, batteries and calibration protocol
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Long term monitoring based on maximum and mean calculation
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Highly accurate and efficient
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Repeated calibration is unnecessary
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CO2 Limit Value: 1000 parts per million
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Includes 9V battery and ISO calibration certificate |
