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SITERWELL 3-in-1 CO2 Detector Monitor, Indoor Air Quality Monitor with Real-Time CO2 PPM Levels Display, CO2 Meter with Test Button, Temperature & Humidity Detection, 12H Time After Recharging, White - Walmart.com
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Amazon.com: SITERWELL Indoor CO2 Detector, Air Quality Monitor, Tester for Carbon Dioxide, Temperature and Relative Humidity, Indoor CO2 Monitor with Alarm, for Grow Tents, Wine Cellars, Homes, Cars
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