If your site was tested positive for radon and the problem was mitigated, it is important that your mitigation systems continue to function properly, otherwise, the risk could still remain and so could your liability. The only way to know if a problem persists is to test, and testing each year can become costly, especially for larger buildings. Our proprietary patented Vapor Sentinel Remote Monitoring System technology was designed for the ongoing monitoring of contaminated sites. It is easy to install on any new or previously installed mitigation system and tracks the ongoing function of your system, cutting down on your costs and liability. For more information visit VaporSentinel.com.