- Set of 4 Wepai Digital Thermo-Hygrometers for Indoor Use - High-precision temperature and humidity sensors, updated every 10 seconds - Measures temperatures from -50°C to 70°C and humidity from 10% to 99% - Accuracy of ±1°C and ±5% relative humidity for reliable results - Large, easy-to-read LCD screen, visible from a distance - Ambient comfort indicator with smiley symbols for intuitive control - Three installation options: foldable stand, hanging hole, and built-in magnet - Long-lasting CR2032 battery pre-installed in each device - Ideal for baby rooms, living rooms, greenhouses, and any indoor space - Helps maintain optimal and healthy conditions at home - Prevents issues such as colds, dry skin, asthma, and mold growth