Specification: Item Type: Temperature Hygrometer. Material: Aluminum Shell Product Dimensions: Approx. 5.7 x 5.7 x 1.2 cm / 2.2 x 2.2 x 0.5 inch Measurable: temperature and humidity green < p>Applications: Greenhouses, warehouses, homes and offices without installing batteries Weight: about 20g / 0.6oz Easy to read: thin transparent dial, easy-to-read scale read. It is easy to read from a distance thanks to the large screen. Temperature and humidity logging will keep you informed of indoor humidity. No batteries needed: The hygrometer lasts longer without batteries. The wireless hygrometer thermometer supports all basic functions. Our hygrometers are reliable and easy to use in homes, greenhouses and more. Two measurements: measure temperature and humidity twice, pay attention to your four seasons and be your housekeeper respondent. Ideal for measuring fluctuating readings such as in greenhouses; data measurements are updated every 10 seconds to give you the latest environmental changes The mini round digital humidity thermometer lets you easily know the temperature and humidity of the environment. Mini, durable and portable enough to save space and carry. Easy to Install: The mini digital hygrometer thermometer is easy to know the current humidity and temperature, and it comes with a tape double-sided adhesive. Please avoid strong vibration and shock. Do not disassemble yourself Thermometer Hygrometer-Indoor Environmental Temperature Monitor Greenhouse Thermometer, Intelligent Humidity Temperature Sensor, Digital Thermometer Hygrometer Indoor Humidity Monitor Hygrometer Instrument < p> The mini round digital humidity thermometer lets you easily know the temperature and humidity of the environment. Mini, durable and portable enough to save space and carry.