KNOW YOUR AIR BROHOM Smart Air Quality Monitor helps you understand your indoor air quality by measuring 6 factors that affect it. You can check current air quality by the App anytime you want. Monitor Your Air CO2(Carbon Dioxide): Indoor carbon dioxide content will directly affect human health and plant growthHUMIDITY: Appropriate humidity is helpful for the storage of valuables and precision instrumentsVOCs（Volatile Organic Compounds): find unwanted chemicals that affect your breathingPM2.5/1.0(Fine Particulate Matter): monitor for potential allergens and irritants Simple to set up and easy to use STEP 1 Plug in the air quality monitor and set Wi-Fi function STEP 2 Download Tuya Smart App and connect the device with app.(Please read the manual for specific operation procedures） STEP 3 Check the air quality parameters at any time through the app and take corresponding improvement by activating Smart home kits Get smarter about your air quality Breath better air with BROHOM Smart Air Quality Monitor FAQ Q: How to connect WIFI? A: Step 1: Enable 2.4 Ghz settings on your router(Please check the instructions in the box which will teach you how to set it) Step 2: Press the Power button three times in a row to turn on Wi-Fi. (make sure Wi-Fi symbol is flashing on screen which means it's on). Then you can connect it. Q: How to Switch the temperature display between Fahrenheit and Celsius? A: Step 1: Long press the Power button to switch it on. Step 2: Rapidly press the Power button two times in a row. Q: How to control other smart home appliances? A: Set your target air quality and link to the app. Smart fans, air purifiers, humidifiers, and space heaters will turn on and off automatically when the indoor air quality changes, if you sync them to the app.