Measurable temperature range: -50 ~ + 70 (degrees Celsius), temperature measurement accuracy: 1.0 . You can see the current room climate and use a humidifier to adjust the room temperature and humidity as needed. Measurable humidity range: 10% -99%, humidity measurement accuracy: 5% - 10% (at room temperature 25 ). Reliability, measured every 10 seconds, gives you the most recent and accurate readings. Battery: two LR44 button cell batteries, size: 48 * 28.6 * 15.2mm. The small portable temperature and humidity meter is suitable for every scene. Besides, its beautiful and elegant look is also the beautiful decoration of the room. Home Humidity Temperature Monitor: This portable thermometer hygrometer measures indoor humidity and temperature, helping you know the indoor air condition. Become the ideal choice for your personal and professional life. Mini LCD display digital thermometer thermo-hygrometer is very popular and is widely used in living room, greenhouse, musical instrument room, wine cellar, cellar, warehouse, attic, baby's room, cloakroom. Product description Color: 3pcs Product functionality: 1. Mini size and exquisite design, easy to carry and widely used. 2. The small and portable temperature and humidity meter is suitable for every scene. Besides, its beautiful and elegant look is also the beautiful decoration of the room. 3. With the digital thermo-hygrometer, you always have an up-to-date view of the indoor climate and therefore can use the humidifier as you wish to regulate the temperature and humidity in the room. Product Specifications: Temperature measurement accuracy: 1.0 Temperature sampling cycle: 10 seconds Relative humidity test range: 10% -99% Humidity resolution: 1% Humidity measurement accuracy: 5 (at room temperature 25)% Size: 48 x 28.6 x 15.2 (mm) Display resolution: 0.1 Display: LCD (three and a half years) Power: 0.15 mw in working conditions Battery: 2 x 1.5 V LR44 button cells Package included: 3x Digital thermometer hygrometer