This X-Sense radon detector is $54. That's $31 off its regular price of $85 and below Amazon's recent average price of $72.
It tracks radon for up to 999 days without lab fees and reaches up to 95% accuracy after 7 days, while also monitoring indoor temperature and humidity. Free shipping applies.
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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