:
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3 independent CO2, humidity and temperature
sensors.
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User operated CO2 calibration.
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Datalogging up to 50,000 records with fast USB
download.
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Internal back-up battery to maintain the data of
Date/Time.
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Power management IC to increase battery efficiency.
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Easy-to-use PC software or parameter setting and
data analysis.
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Building in audio CI2 buzzer/alarm.