Features:  When temperature too high or too low, the APP will receive alarm push, and remind you of it.  It can be used for many places, such as bedroom, bath room, living room and kitchen, etc.  The wireless transmitting data signals design, you can real time monitor by your mobile phone.  With functions of low voltage monitoring tips and the shipment with 3 * AAA batteries.  The temperature measuring range is -10℃-55℃, and the humidity is 0%RH-100%RH.    Specifications:  Material: ABS  Color: White  Transmission Way: WIFI 2.4G  Temperature Measuring Range: -10℃-55℃  Humidity Measuring Range: 0%RH-100%RH   Package Size: 6.4 * 6.4 * 1.8cm / 2.5 * 2.5 * 0.7in  Package Weight: 100g / 3.5oz    Package List:  1 * Hygrometer Thermometer      By the way,if you like our store,please add our store to your Favorite Stores.You can get our New arrival and Discount   information in time.