EASY TO MEASURE: The hygrometer can detect changes in ambient temperature and humidity at any time to make appropriate adjustments. High precision temperature and humidity measurement with little error and long service life. HUMIDITY MATTERS: An accurate moisture meter is an inexpensive way for you to monitor humidity at an ideal level. This moisture meter will help you make sure the humidity in your home is good enough. MEASUREMENT RANGE: Accurate thermometer measurements in winter, temperature between 18-25, humidity between 30%-80%, summer temperature between 23-28, humidity between 40-50%. WIDELY USED: This Indoor hygrometer with hanging ring is suitable for temperature measurement in households, greenhouses and warehouses. It contains multiple air holes, following the airflow principle, more suitable for atmospheric detection. Note: The data is manual measurement, please allow 1 error -63cm, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.