Wellness Indicator: This humidity meter with humidity level icon indicates air conditions – DRY/COMFORT/WET, allowing this humidity sensor to ensure you’re always aware of changes to your home/household with just a quick glance High Accuracy & Quick Refresh Rate: This inside thermometer features a high accuracy of +/-2 to 3%RH and +/-1°F, making it ideal for measuring fluctuating readings like those found in a greenhouse, data measurements are updated every 10 seconds to give you the latest updates on your environment High & Low Records: This hygrometer digital thermometer displays high/low temperature and humidity levels to allow you to make proper comparisons using your home’s data Healthier Home & Environment: This thermometer hygrometer with temperature and humidity monitor ensures proper indoor humidity that achieves important health benefits for skin and allergen, can also serve as a refrigerator thermometer, freezer thermometer, reptile thermometer, soil thermometer, humidor hygrometer, cigar hygrometer, and more Practical Design: This indoor room thermometer features a tabletop stand and a magnetic back, place the temperature monitor on your counter or fridge; °F/°C selector; Includes 1 AAA battery