1. High temperature and low temperature alarm Once the set temperature value is exceeded, the mobile phone will prompt an alarm 2. High humidity and low humidity alarm Once the set humidity value is exceeded, the mobile phone will prompt an alarm 3. Real-time monitoring. Battery powered AAA1.5V*3 (battery not included), low power consumption, can be used for about 1 year according to the system default settings. The data update frequency is 1-120 minutes, and the update frequency can be selected as needed. The smaller the value, the shorter the actual battery life. 4. Temperature and humidity curve Record the temperature and humidity changes on the APP and present them with graphics. It is more intuitive to let you know the latest data changes 5. A variety of installation methods It can be placed directly on the table or hung on the wall. It is more convenient and beautiful without the data cable 6. LCD display The sensor uses LCD as temperature and humidity display, and adds time and date display on the screen. The time and date are automatically calibrated. 7. Scene linkage The sensor can be used as a temperature and humidity data source for Tuya Smart, Smart Life, Amazon Alexa, and Google Home. You can perform many automated processes based on data sources. Note that this function needs to be used with a universal infrared remote control, you can contact customer service to purchase 8. Temperature unit switch The sensor is designed with Celsius and Fahrenheit temperature display conversion. You can select the units you want to display according to your needs. The speed of switching is related to the set data update frequency. You can first select the update frequency for one minute, then switch the temperature to the new unit after one minute, and then switch the data update frequency to the time you need. 9. Third-party voice support. The sensor supports Amazon Alexa, Google Home Assistant. You can check the current temperature and humidity by voice. Size:60*63*25MM Power Supplies: 3*AAA Batteries (NOT INCLUDED IN THIS PRODUCT) WiFi Support: 2.4G IEEE 802.11 b/g/n Temperature Measurement Range: -10~55 Temperature Accuracy: 0.3 Humidity Measurement Range: 0%~99%RH Humidity Accuracy: 0.3% RH Package Included: 1* Temperature And Humidity Sensor