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Airthings Wave Plus is a smart indoor air quality monitor with radon detection, designed for homes and all populated spaces. A clean air detector enabling you to gain full visibility into six factors; radon, airborne chemicals (TVOCs), carbon dioxide (CO2) humidity,...
First Alert Plug-In w/Battery Back-up Electrochemical Carbon Monoxide Detector 174.4 out of 5 Stars. 17 reviews Save with First Alert SC9120B Direct Wire Combination Smoke and Carbon Monoxide Detector, 120 Volt 9 Volt Battery Back-up - 3 Pack Add $21295current price $212.95First Alert ...