【INTELLIGENT DIGITAL THERMOMETER HYGROMETER】Flintronic mini digital temperature and humidity meter is small and exquisite, only 4.3*4.3*1.3cm, 21g. It features two types of icons. When the humidity is between 40% and 70%, it displays a smiling face. When the humidity is below 40% or above 70%, it shows a different icon, helping you monitor indoor comfort levels at a glance. 【TEMPERATURE MEASUREMENT RANGE】Measures temperature from -10℃ to 70℃ with an accuracy of ±1℃. Readings are updated every 10 seconds. 【HUMIDITY MEASUREMENT ACCURACY】Measures humidity from 10% RH to 99% RH with an accuracy of ±5% RH. 【SMALL AND EXQUISITE】Compact design measuring 4.3*4.3*1.3cm and weighing only 21 grams. Powered by a CR2032 battery (included). 【WIDE APPLICATION】Suitable for use in homes, offices, cars, schools, hotels, laboratories, gardens, aquaculture, workshops, libraries, factories, and air-conditioned environments.