Product Review

Select CO2 Parts Per Million (PPM) levels at 1000PPM or 1250PPM or 1500PPM Factory calibrated for precision levels of CO2 in your grow room Integrated photocell only activates controller in daytime period when CO2 is used by plants Built in 'calibration' feature to recalibrate Atlas 7, if necessary ETL listed for use in commercial applications Plastic enclosure resists dust and moisture 5 Amps/120 Volts/60 Hz 1 year warranty.