Measurable temperature range: -50 ~ + 70 (degrees Celsius), temperature measurement accuracy: 1.0 . You can see the current climate of the room and use a humidifier to adjust the temperature and humidity of the room as needed. Measurable humidity range: 10% -99%, humidity measurement accuracy: 5% - 10% (room temperature 25 ). Reliability, measured every 10 seconds, provides you with the latest and most accurate readings. BatteryTwo LR44 button batteriesSize: 48 * 28.6 * 15.2 mm. The small portable temperature and humidity meter is suitable for every scene. In addition, its beautiful and elegant appearance 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 conditions. Become the ideal choice for your personal and professional life. The mini LCD digital thermometer hygrometer is very popular and is widely used in living room, greenhouse, musical instrument room, wine cellar, basement, warehouse, attic, baby room, dressing room. Product Description Color:3pcs Product Feature: 1. MinSize and exquisite design, easy to carry and widely used. 2. The small and portable temperature and humidity meter is suitable for every scene. In addition, its beautiful and elegant appearance is also the beautiful decoration of the room. 3. With the digital thermo-hygrometer you always ve a current view of the indoor climate and can therefore use the humidifier as you wish to regulate the room temperature and humidity. 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 (room temperature 25)% Size: 48 x 28.6 x 15.2 (mm) Display resolution: 0.1 Display: LCD (three and a lf years) Power: 0.15mw under working conditions Battery: 2 x 1.5V LR44 button batteries Package included: 3x Digital Thermometer Hygrometer