The newly upgraded 11.8inch x 7.5inch co2 monitor with more advanced chips, built-in 3 different advanced sensors,operate independently, can accurate test co2 ,temperature and humidity, let you no have the of inaccurate datas. This newly released indoor co2 detector is and modern and has a beautiful LCD screen that will the style of your home or office without detracting from your interior design. Different from other air quality monitors, co2 monitors include a desktop stand and wall mount accessories, you can place the product on the table or hang it . Connect to your smartphone's app via wifi and download the Tuya Smart app on or App ,at the same time, you can create your family group on the APP and invite your lover in,which can check your home air quality simultaneously. real-time work situation,smartphone remote control to make your home smarter. No matter how from home, the safety of home is in hands. CO2 detector has Intelligent early warning system, high quality infrared NDIR sensor to accurately and quickly detect carbon dioxide.It is designed with 3 of CO2: Normal mode (400-999ppm), Warning mode (1000-1399ppm), and Danger mode (over 1400ppm).If the data concentration exceeds 1000ppm, an alarm will be issued immediately. If an alarm occurs, take immediate action (open windows for ventilation or put some green plants, etc.). The air quality detector is equipped with mounting adhesive and screw, adopts easy to install, plug and play design,you can the installation according to your needs.The product can be automatically calibrated after it is turned on, and automatic measurement will after calibration. Colour:White Material:ABS Package Contents: 1 set x Indoor Air Quality Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.