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TVOC: 0-9.999mg/m³. HCHO Detection range 0-9.999mg/m³. PM2.5 Detection range 0-999ug/m³. 1x 6in1 Air Quality Tester. Backlit LCD screen: The CO2 tester has an LCD screen with a colour backlit display that makes each value easy to identify and read at a glance.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.