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Portable Carbon Dioxide Gas Detector | CO2 | Manufacturer
Cheffort Handheld Carbon Monoxide Meter, Portable Carbon Monoxide Detector, Professional-Grade CO Gas Tester with LCD Backlit Display, 0-1000PPM Range for Industrial and Home (Battery Not Included) - Amazon.com
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Handheld CO2 Gas Detector 350~9999PPM Portable LCD Display Rechargeable Li-Battery Powered Digital Carbon Dioxide Gas Monitor - Amazon.com
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Handheld CO2 Meter | Portable Carbon Dioxide Detector
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LifeBasis Portable CO2 Dector CO2 Monitor with NDIR Sensor and Warning
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Nonin 9840 Series Handheld CO2 and Pulse Oximetry Monitor - Jaken Medical Inc
Carbon Dioxide Detector with Rechargeable Battery Portable CO2 Meter Tester Wall-mounted for Carbon Dioxide Air Quality Detector CO2 Meter Monitor with Storage Case with Support Stand - Walmart.com
Portable Carbon Monoxide (CO) Gas Detector, 0 to 500/1000/2000 ppm | sisco.com
Handheld Carbon Monoxide (CO) Gas Detector, 0 to 500/1000/2000 ppm | ATO.com