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Testing your home for radon is something the EPA recommends regardless of your region, and this plug-in monitor gives continuous readings instead of a one-time test. At $51.29, that's $33.70 (40%) off the $84.99 list price for Prime members. Deal ends October 7. Buy Now at Amazon
Features
- 999-day radon tracking with 24-hour results
- 2-year battery life for maintenance-free monitoring
- Real-time sound and light radon threshold alerts
- Local storage for 99 historical records
- Integrated temperature and humidity sensors
