Humidity Temperature Monitor This portable thermometer hygrometer measures indoor humidity and temperature, help you know the indoor air conditions. Measurable humidity range 10%-99%, humidity measurement accuracy: 5% (at room temperature 25). Measurable temperature range -50 ~+70, Temperature measurement accuracy: 1.0. Battery LR44 button batteries, size: 44 *44*15 mm. Wide Application Digital temperature and humidity meter are usually used in living room, greenhouse, wine cellar, basement, warehouse. Product features mini size and exquisite design, easy to carry and widely used. The small and portable temperature and humidity meter is suitable for any scene. In addition, its beautiful and stylish look is also a beautiful room decoration. With the digital thermo-hygrometer, you always have an up-to-date view of the room climate and you can therefore use the humidifier according to your wishes to measure the temperature and humidity of the room. Measurable temperature range: -50 ~ +70 Temperature measurement accuracy: 1.0 Temperature resolution: 0.1 Relative Humidity Test Range: 10%RH ~ 99%RH Humidity Measurement Accuracy: 5% (at room temperature 25) Humidity Resolution: 1 % Measuring cycle: 10 seconds Power: 0.15mW under working conditions Battery: 1x DC 1.5V LR44 button batteries Size : about 44mm*15mm