Features: 1. High temperature and low temperature alarm: When the temperature exceeds the set value, the phone will sound an alarm2. High humidity and low humidity alarm: When the set value of humidity is exceeded, the phone will sound an alarm3. Temperature and Humidity Curve: Record temperature and humidity changes on the APP and present it to you with graphics. More intuitive to inform you about the latest 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 beautiful. 5.LCD screen: The sensor uses LCD as 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 for Celsius and Fahrenheit. You can choose which device to display according to your needs. The switching speed is related to the set data refresh rate. You can first select the update frequency for one minute, after one minute the temperature will switch to the new device, and then change the data update frequency to the time you need Note: Please allow 1-3cm deviation due to manual measurement. The actual color may be slightly different from the picture due to different monitor and light effect: Material: PC + electronic components Power supply: 3x AAA battery (excluding battery) Temperature accuracy: 0.3 Temperature measurement range: -10~55. Wi-Fi Support: 2.4G IEEE 802.11 b/g/nHumidity Measurement Range: 0%~99%RHHumidity Accuracy: 0.3%RHS Size: As Shown Includes: 1x Smart WiFi Thermometer