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Turn ON and GO. 🌇 FEATURES: Color screen, graphing, and alarm logging. 🔬 SENSORS: High-quality CO and O2 sensors made in the UK. Calculates COAF (CO air free) and excess air (EA) for combustion analysis.
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.