Product features:[ Magnetic ] It can be pasted on metal-containing such as refrigerators and metal doors, and can be pasted and removed at any time. [ Button ]It can be opened or closed for a long time; In a short time, it can be adjusted / [Easy To Read and Use]digital hygrometer thermometer work right out of without complicated function buttons. The beautiful white front panel has a clear LCD displaying bold numbers that you can read even at a distance. The digital hygrometer thermometer can be placed anywhere in the home or carried outdoors, powered by a CR2032 battery (included), which will you have a more powerful battery life and a more worry-free experience. [ Indicator]mini thermometer hygrometer with level Indicator, visual helps you understand humidity immediately, assisting the usage of humidifier, dehumidifier , and humidistat, and also facilitate monitoring family's living conditions by a against coldness, dryness of , asthma, allergy, and mold. [High Accuracy and Quickly Refresh]With industrial-grade high precision temperature and humidity sensors, and this temperature and humidity gauge feature 2%RH and 1F high precision, analog and thermometers. This upgraded digital temperature and humidity gauge are more accurate and easier to use. The readings are updated 10 seconds to give you the latest and more precise temperature and humidity readings. Material: ABS colour: Black Package Contents: 1 x thermometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.