Master your humidity levels with the AcuRite Pro Indoor Hygrometer and Thermometer. This small humidity gauge is ready for cigars, guitars, or whatever you need to protect — it also makes for a great baby room thermometer or as the perfect hygrometer for plants. This inside thermometer and humidity detector has a magnet on the back for easy placement or a tabletop stand. This indoor thermometer and humidity monitor combo is everything you need in an indoor digital thermometer with accuracy up to 0.5% for temperature and % for relative humidity. The temperature and humidity monitor is equipped to give you daily updates on the record of high and low temperature/humidity, allowing you to compare to current readings. You can self-calibrate this hygrometer to get the perfect reading in any room. AcuRite 01083 Indoor Thermometer & Hygrometer with Humidity Gauge & Pro Accuracy Calibration