Easy Reading: With thin transparent dial, easy to read scale. Thanks to the large screen, it is easy to read from a distance. Temperature humidity records will keep you updated on indoor humidity at all times. No Battery Required: The hygrometer has a longer lifespan and no battery is required. The wireless thermometer hygrometer supports all basic functions. Our moisture meters are reliable and easy to use for 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 a greenhouse; Data measurements are updated every 10 seconds to give you the latest changes in the environment Mini design: Product size: approx. 5.7 x 5.7 x 1.2cm/2.2 x 2.2 x 0.5inch. 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 easily knows the current humidity and temperature, fixed with double-sided tape. Please avoid strong vibration and shock. Do not disassemble yourself