Usage Tips:Comprehensive air quality monitoring: Equip your home with the advanced Tuya Smart Air Box, a multi-functional device designed to improve your living environment. This smart sensor can effectively detect carbon dioxide (CO2), formaldehyde, volatile organic compounds (VOC), and monitor temperature and humidity Smart connection: Seamlessly connect via WIFI, and monitor and adjust in real time through user-friendly applications. Understand and control indoor air quality anytime, anywhere Smart linkage, after the Tuya APP presets the automation mode, when the indoor environment is abnormal, it can trigger a linkage alarm, turn on air conditioners, fresh air fans, air purifiers, humidifiers and other home appliances to optimize the environment Enhance safety and comfort: Ensure a healthier indoor environment for your family. The device's sensitive sensors provide accurate readings to help you maintain optimal air quality, which promotes overall health Communication protocol: WIFI Range (formaldehyde):0 - 10.00mg/m³ Range (VOC): 0-99.9ppm Range (carbon dioxide): 0-1000ppm Range (temperature): 0 °C- 60°C Range (humidity): 0--95% Colour:White Material:plastic Package Contents: 1 * Air Quality Monitor 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.