Peace of Mind: No Lab Fees & Waiting Time, continuously monitor your radon level at home and read real time data (long term and short term) on screen. Get faster result in 7 days (90% accuracy), 2 months accuracy is 95%. Patented Sensor Technology: Apply alpha spectrometry radon sensor which is more accurate than those carbon-based radon test kits because the adsorption capacity of activated carbon on radon gas is greatly affected by temperature and humidity and it only detects short term 2-4 days or a week. Right Out of Box: No smartphone, no Wi-Fi, no BLE, battery-operated, simply start monitoring your home radon level without the need for an outlet, especially designed for basement, garage and cellar. Verified by Professionals: After multiple times of tests, the accuracy is very close to the units used by the professionals. But it is far more economical. Owning our home radon detector is a long-term investment in you and your family's health. 2-Year Customer Service: This radon detector should not be exposed to direct sunshine or placed in an environment with humidity higher than 85%RH. The longer the measurement time, the more accurate the result. Hanchen radon detector is a state-of-the-art measuring instrument that combines ease of use and performance. Our radon gas detector allows you to take a reading of the radon levels and its LCD screen displays the average daily, weekly and long term concentrations. Powered by 3 standard AAA batteries, the radon monitor makes it easy to take measurements from one room to another in order to get an overview of the concentrations of radon in a home, workplace, school, a daycare centre or any other location.