Review on 🌡️ 5-Pack Mini Digital Thermometer Hygrometer for Indoor Rooms - Monitor Temperature & Humidity, Large LCD Display in Fahrenheit or Celsius - Ideal for Greenhouse, Home, Reptiles, Humidors, Office, and Garden by Andy Tunes

These small (less than 2 inches) devices are great. I put them next to an expensive device that measures temperature and humidity, and they were all accurate to within tenths of a percent—very accurate. I know some reviewers have left negative comments. You may have received a defective product. All 5 of mine were accurate and easy to read. Highly recommended. i could buy more