The Corentium Home by Airthings digital radon detector is a portable, lightweight radon measuring device that combines ease of use and accuracy. What is Radon? Radon is a dangerous naturally occurring, invisible radioactive gas that comes up from the ground and can accumulate to unsafe levels in the home. It is odorless, colorless and tasteless. Radon gas is in the air all around us and levels fluctuate daily. The Corentium Home digital radon detector warns you when levels are getting high. Powered by 3 standard AAA batteries, the Corentium Home LCD digital display shows the first indication of your radon levels within 24 hours. Unlike radon test kits, there is nothing to send to a lab and no lab fees. The Corentium Home radon gas detector displays daily, weekly and long term average radon levels allowing you to take action if there are unsafe levels of radon gas in your home. The Home continuous radon monitor is an essential tool to use when buying or selling a home and it also ensures a radon mitigation system is performing properly. Airthings devices have premium sensors to ensure that you can have a healthy home and breathe in clean air. The internal architecture of the Home radon monitor comes from advanced technology normally reserved for professional-grade detectors. Developed by particle physicists, our state-of-the-art radon testing sensor is accurate, reliable and requires no annual calibrations throughout its useful life.