【SMALL AND EXQUISITE】This hygrometer thermometer (4.3 x 4.3 x 1.3 cm, weighs only 20 g). Small, sturdy and portable enough to save space and carry with you. The LCD screen of the thermometer is very hard and scratch-resistant, and equipped with a high-precision sensor that can accurately display the current temperature, humidity and comfort. 【MEASURING RANGE FOR TEMPERATURE AND HUMIDITY】 Temperature measuring range: -50℃ ~70℃ . Accuracy of temperature measurement: ±1℃. The measurement conditions are updated every 10 seconds. Indoor/outdoor humidity measurement range: 10% RH to 99% RH. Humidity measurement accuracy: ±5% RH. 【SMART DIGITAL THERMOMETER-HYGROMETER】With a clear LCD screen. When the humidity is between 40% and 70%, it will show a smiling face. When the humidity is below 40% or above 70%, it will show uncomfortable, so you can keep your home healthy and comfortable at a glance. 【EASY TO INSTALL】 The mini thermometer hygrometer is ready to use right out of the box, without