This small indoor hygrometer thermometer will help you keep track of temperature and humidity level of your room in real time. You know when to run humidifier or air conditioner clearly. | This digital temperature and humidity gauge has a durable kickstand, allowing to be placed in where it should be. Such as bedroom, baby room, nursery, office, closet, incubator, humidor, greenhouse, garden, wine cellar, basement, reptile terrarium, garage, warehouse, guitar case etc. | It features humidity level indicator and 1-hour reading trend icons. Better than others, its auto-calibration function provides you an accurate reading anytime, anywhere. | The separate temperature and humidity sensor improves its monitor performance hundreds times more. Temperature range: -58 ~ 158 ℉( -50~70℃ ), Humidity range: 10%~99%. | This room thermometer for home comes with long lasting AAA battery, ready to use upon receipt. What's in the box: 1 x Indoor Hygrometer Thermometers; 1 x AAA Battery. A great tool for the coming dry season!