Measurable temperature range: -50 ~ + 70 (degrees Celsius), temperature measurement accuracy: 1.0 . You can display the current room climate and use a humidifier to set the room temperature and humidity as required. Measurable humidity range: 10% -99%, accuracy of the humidity measurement: 5% - 10% (at room temperature 25 C). Reliability, measured every 10 seconds, provides the latest and most accurate readings. Battery: two LR44 button cell batteries, size: 48 * 28.6 * 15.2mm. The small portable temperature and humidity meter is suitable for any scene. Besides, its beautiful and elegant appearance is also the beautiful decoration of the room. Home Humidity Temperature Monitoring: This portable thermometer hygrometer measures indoor humidity and temperature and helps you identify the indoor air conditioner. Become the ideal choice for your personal and professional life. Mini LCD display digital thermometer thermo-hygrometer is very popular and widely used in living room, greenhouse, musical instrument room, wine cellar, basement, warehouse, attic, children's room, cloakroom. Product description Color: 3 pieces 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 appearance is also the beautiful decoration of the room. 3. With the digital thermo-hygrometer you always have an up-to-date view of the room climate and can therefore use the humidifier 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% Moisture resolution: 1% Accuracy of humidity measurement: 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) Output: 0.15 MW under working conditions Battery: 2 x 1.5 V LR44 button cells Package include: 3x digital thermometer-hygrometer