1、Intelligent WIFI Function: The temperature and humidity data storage, can obviously see the data changes. Simply open the for Smart Life APP and add the device thermohygrometer to view temperature and humidity changes on your mobile phone. 2、High Accuracy Digital Sensor: The built in high accuracy digital temperature and humidity sensor can quickly and accurately detect changes in temperature and humidity, alerting you and your family to adjust the temperature and humidity in time to improve indoor comfort. 3、Low Power Consumption and Long Life: The temperature and humidity sensor uses 3 AA batteries (not included), which are easy to replace and can standby for 2 years after one change, giving your family a long lasting protection. 4、Linked Smart Device: This temperature and humidity sensor can be used with everyday smart household appliances to more accurately sense changes in temperature and humidity, making your living environment more comfortable. 5、Multiscene Use: The temperature and humidity sensor can be hung up and placed anywhere without taking up any space, on bedside tables, desks, offices, with hanging holes on the back, or on walls or behind doors. 1 x Hygrometer Thermometer Sensor1 x Instruction Manual Item Type: Hygrometer Thermometer SensorMaterial: ABSPower Supply: 3 x 1.5V AA batteries (Not included)Operating Current: <100mAStandby Current: <30uATemperature Measurement Range: -9℃ to 99℃Humidity Measurement Range: 0%RH to 99%RH