Extech CO220 Desktop Indoor Air Quality Monitor for CO2 is a convenient and portable desktop CO2 monitor for determining Air quality in offices, schools, factories and other areas at risk for high CO2 levels. Extech CO220 also features temperature and dew point measurements, manual storage and recall of up to 99 readings, and is designed with a maintenance free sensor.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
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