FIRST OF ITS KIND: The first battery-operated, digital radon detector. Monitor your home without the need for an outlet LONG TERM MONITORING: Monitor for cancer-causing radon gas. Long term monitoring is necessary as radon levels fluctuate daily. Detection Method: Alpha Spectrometry RADON REPORT: Generate a radon self-inspection report easily, whenever you need it NO LAB FEES: Unlike a traditional radon gas test kit, receive your first indication of radon levels within 24 hours on the Corentium Home\'s digital display What you get: Airthings Corentium Home (Intl Version Bq/m), 3 AAA batteries, Quick Start Guide (Bilingual English/Français), Airthings 12-months warranty & access to Airthings Customer Support Display 1-day, 7-day and past history up to 1 year ; It’s normal to see reading that fluctuate. That’s the nature of radon gas. › See more product details