expiredThis Corentium Airthings Home/Portable Radon Detector is $140 shipped (Reg. $199)

Today only, as part of its Gold Box Deals of the Day, Amazon is offering the Corentium Home Radon Detector by Airthings for $139.99 shipped. Regularly close to $200, today’s deal is almost $60 in savings and the lowest we have tracked on Amazon. It goes for $200 over at Walmart, for comparison. Along with a 2-year battery life, it features a portable design and never needs to be re-calibrated. This best-selling gas detector & alarm on Amazon carries a 4+ star rating from over 760 Amazon customers.