Photo 1 of CO2 Monitor Carbon Dioxide Detector, 5-in-1 Indoor Air Quality Monitor, Portable CO2 Tester with Alarm, Tester for Carbon Dioxide, Temperature & Humidity, CO2 Sensor for Grow Tents, Bedroom, Home

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Photo 1 of CO2 Monitor Carbon Dioxide Detector, 5-in-1 Indoor Air Quality Monitor, Portable CO2 Tester with Alarm, Tester for Carbon Dioxide, Temperature & Humidity, CO2 Sensor for Grow Tents, Bedroom, Home