Smart Digital Thermometer Hygrometer This mini digital humidity and temperature meter allows you to easily monitor the surrounding environment's temperature and humidity. Temperature Measurement Range: -50°C to 70°C Temperature Accuracy: ±1°C Measurements are updated every 10 seconds. Humidity Measurement Range: 10% RH to 99% RH Humidity Accuracy: ±5% RH Compact Design with Long Battery Life Measuring 4.3 x 4.3 x 1.3 cm and weighing only 21g, this hygrometer is small, durable, and portable, making it ideal for saving space and on-the-go use. Powered by a CR2032 battery (included), it offers up to 12 months of battery life. Wide Range of Applications Suitable for use in homes, offices, cars, schools, hotels, laboratories, kindergartens, greenhouses, workshops, libraries, factories, and other indoor environments with climate control systems.