Home Humidity Temperature Monitor: This portable thermometer hygrometer measures indoor humidity and temperature to help you understand indoor air conditions. Ideal for your personal and professional life. Measurable humidity range: 10%-99%, humidity measurement accuracy: 5% - 10% (at room temperature of 25C). Reliability, measured every 10 seconds, provides up-to-date and accurate readings. Measurable temperature range: -50~+70 (degree Celsius), temperature measurement accuracy: 1.0. You can check the current indoor climate and use a humidifier to adjust the temperature and humidity of the room as needed. Battery: Two LR44 button batteries, size: 48*28.6*15.2mm. Small and portable thermo-hygrometer suitable for any scene. In addition, its beautiful and stylish appearance is also a beautiful room decoration. Digital Hygrometer Thermohygrometers are very popular and widely used in living rooms, greenhouses, musical instrument rooms, wine cellars, basements, warehouses, granaries, baby rooms, cloakrooms.