The Urban Thermo-Hygrometer SMALL digital thermometer and hygrometer with a small display is equipped with a sensor and is ideal for measuring temperature and humidity, not only indoors. The humidity measurement range is 10% RH to 99% RH, while the temperature measurement range is from -50 °C to 70 °C. The measurement accuracy is 0.1 °C for temperature and 1% RH for humidity. The accuracy of the temperature measurement is ± 0.1 °C and that of the humidity measurement is ± 5%. The update frequency is 1 second. The device measures 47x28x15 mm, weighs 30 g and is supplied with 2x LR44 1.5V batteries (included).