Corentium Home Radon Detector by Airthings 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L $139.99

Corentium Home Radon Detector by Airthings 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
-Quick results, with your first radon level indication in 24 hours
-Lightweight and portable
-Battery operated with a 2-year battery life
-Unaffected by electromagnetic interference and dust, performs optimally in humidity < 85%
-Designed in Europe and tested in Japan, Germany, France & USA