【Accurate and reliable temperature and hygrometer】Home thermometer temperature measurement range: - 50 °C ~ + 70 °C (- 58 °F ~ + 158 °F), accuracy: ± 1 °C (1.8 °F). Humidity range: 10% RH ~ 99% RH, accuracy: ± 5% RH. 【Clear and interesting digital LCD display】You can switch °C and °F at will; The mini digital hygrometers have 3 kinds of icons, It shows a smiley face when the humidity is between 40% and 70%. When the humidity is lower than 40% or higher than 70%, dissatisfaction will occur. 【Low power consumption】Powered by 2032 button batteries (including battery), the battery can work for 12 months. The measurement conditions are updated every 10 seconds,Ideal for monitoring family living and health conditions to prevent colds, dry skin, asthma, allergies, mold, etc. 【Small and easy to carry] This humidity thermometer (4.3 * 4.3 * 1.1 cm, weighing only 20.7 g) is small, durable and portable. In addition, it has glue on the back,It can be placed almost anywhere. It is often used in