Anthem Services utilizes the latest radon detection technology, including a Continuous Radon Monitor (CRM) system that provides real-time radon level readings on an hourly basis. This advanced system also tracks movement to ensure the accuracy of our tests. To prepare for testing, please keep all windows and doors closed and refrain from using whole house fans for at least 12 hours prior. The testing process lasts over 48 hours, during which all windows and must remain closed. We provide same-day report analysis upon completion of the test.