A Silent Sentry will Remain Alert to Radon Risk

A Silent Sentry: A Quality Radon Meter can give you continuous peace of mind that you and your family are protected. If your radon levels rise, you will receive an audible warning so that you may contact the radon mitigator to fix the radon system under warranty. The accuracy of these Safety Siren PRO Series 4 fourth generation radon meters is almost the same as professional meters costing thousands. These gems automatically calibrate themselves every 24 hours for continued accuracy over the years without having to return them to a lab for re-calibration.. No batteries to replace. 7 and 365 day running averages displayed.