Solar-Powered Digital Thermometer and Hygrometer 2-Pack for $8.90 + free shipping w/ Prime

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Handy for keeping tabs on temperature and humidity in a greenhouse, closet, or pair of rooms without swapping batteries, since the solar panel keeps it running. At $8.90, that's about a dollar off the $9.89 list price. Deal ends September 11. Buy Now at Amazon Features Solar-powered for continuous, battery-free operation High-precision sensing updates every 10 seconds Visual comfort level indicator for health monitoring Large LCD screen with easy-to-read digits Extensive 3-year warranty for long

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