Features: 1.High temperature and low temperature alarm: Once the temperature exceeds the set value. the phone will prompt an alarm 2.High humidity and low humidity alarm: Once the set humidity value is exceeded. the phone will prompt an alarm 3.Temperature and Humidity Curve: Record the temperature and humidity changes on the APP and present it to you with graphics. More intuitive to let you know the recent data changes 4.Multiple installation methods: It can be placed directly on the table or hung on the wall. There is no data cable so it is more convenient and more beautiful 5.LCD screen display: The sensor uses LCD as the temperature and humidity display. and the time and date are displayed on the screen. The time and date are automatically calibrated. 6.Temperature unit switch: The sensor is designed with a display conversion function of Celsius and Fahrenheit. You can select the unit to be displayed according to your needs. The switching speed is related to the set data update frequency. You can first select the update frequency for one minute. after one minute the temperature will switch to the new unit. and then switch the data update frequency to the time you need Notice:Please allow 1-3cm deviation due to manual measurementActual color may be slightly different from the image due to different monitor and light effect:Material: PC + electronic components Power supply: 3x AAA battery (not including battery)Temperature accuracy: 0.3Temperature measurement range: -10~55.Wi-Fi support: 2.4G IEEE 802.11 b\/g\/nHumidity measurement range: 0%~99%RHHumidity accuracy: 0.3% RHSize: as shownincludes:1x Smart WiFi Thermometer Products from GuanGuan's store