Long & Short Term Average ReadingThe long-term average represents the average radon value for the ongoing measurement, max one year. Used to identify any potential health risk; The short-term average alternates between showing the average radon value for the last day or the last 7 days. Used primarily to see the effect of measures to reduce the radon level.
How to Get Stable Radon ValueRadon is an inert gas. If you want to get accurate and stable data, long-term testing and monitoring is necessary. Testing time is at least 14 days or even 30 days. Because the air environment affects the concentration of radon gas, keep doors and windows closed for a period of time before testing for radon.
How to Switch Measuremnt Unit1. Press the "Mode" button for more than 1 second to enter the units setting mode. 2. Short press "Mode" button to choose the units. 3. Long press the "Mode" button for more than 1 second to confirm the setting. Or you can read the manual that has clear picture instructions.
No Lab Fees and TimeNo need to spend a lot of money and make appointments for lab personnel to come to your home to take measurements. Simply turn on the radon meter and you can easily monitor your radon level continuously in real time without spending extra your time and money