Fangrui Product Details 1. Wifi Temperature And Humidity Meter Sensor Equipment Smart Home Graffiti App Temperature And Humidity Sensor 2. Power Supply: Aaa1.5v X 3 (batteries Not Included) 3. Wifi Support: 2.4g Ieee 802.11 Bgn 4. Temperature Measurement Range: -10 - 55 Degrees Celsius 5. Temperature Accuracy: About 2.7 6. Humidity Measurement Range: - Rh 7. Humidity Accuracy: About Rh 8. Size: About 6 X 6.3 X 2.5cm 9. Net Weight: About 65g 10. Features: 11. High Temperature Low Temperature Alarm: Exceed The Value Of The Set Temperature, The Phone Will Prompt The Alarm 12. High Humidity Low Humidity Alarm: Exceeding The Value Of The Set Humidity, The Phone Will Prompt The Alarm 13. Real-time Monitoring: Battery (not Included) Power Supply, Low Power Consumption, According To The System Default Settings, Can Be Used For About 1 Year; Data Update Frequency 1-120 Minutes, You Can Choose The Update Frequency As Needed. The Smaller The Value, The Shorter The Actual Battery Life Will Be 14. Temperature And Humidity Graph: Record The Temperature And Humidity Changes On The App, And Present It To You With Graphs, Which Is More Intuitive To Let You Know The Recent Data Changes 15. Multiple Installation Methods: Can Be Placed Directly On The Table, You Can Also Hang It On The Wall, No Data Line Is More Convenient And Beautiful 16. Lcd Display: Using Lcd As The Temperature And Humidity Display, Adding The Time And Date Display On The Screen, The Time And Date Will Be Automatically Calibrated. 17. Scene Linkage: Can Be Used As The Temperature Data Source For Doodle Intelligence, Smart Life, Amazon Alexa, Google Home, And Can Perform Many Automated Processes Based On The Data Source (note: Realization Of This Function Needs To Be Paired With A Universal Infrared Remote Control (not Included) In Order To Be Used) 18. Temperature Unit Switch: There Are Celsius And Fahrenheit Temperature Display Conversion Function, You Can Select The Unit You Need To Display According To The Need To Switch Fast Or Slow And Set The Data Update Frequency Has A Relationship, Yo