Key benefits Accurate CO2 and particle readings: Independent CO2 NDIR sensor plus laser particle sensor operate simultaneously for reliable measurement. The NDIR CO2 sensor delivers higher accuracy and stronger interference resistance than semiconductor CO2 sensors, reducing false alarms and giving more trustworthy data. Continuous monitoring with low power impact: When no one is detected the screen automatically turns off to save energy, while the sensors continue to collect and transmit data to the cloud via builtin WiFi. Easy remote access and alerts: Built‑in WiFi links the device to the cloud for continuous tracking and intelligent analysis. Use the mobile app to view real‑time values, historical trends, and receive purification reminders. Always readable display: Automatic brightness adjustment keeps the screen visible without glare by adapting to surrounding light. What it does (functions and performance) Measures CO2 with an independent NDIR sensor and monitors particulate matter with a laser particle sensor at the same time for comprehensive indoor air quality assessment. Provides stable, interference‑resistant CO2 readings compared with semiconductor alternatives, improving decision making about ventilation and air purification. Sends measurement data to the cloud via built‑in WiFi for remote monitoring and analysis through the mobile app. Automatically adjusts screen brightness for comfort and automatically shuts off the display when no activity is detected to minimize power usage, while continuing to report data. Compatibility and use Connects to WiFi and integrates with the provided mobile app for on‑the‑go access to current values and historical data. Designed for continuous indoor monitoring; sensors remain active and push data to the cloud even when the display is turned off. Practical scenarios Home living spaces: Monitor CO2 and particulate levels in the living room or bedrooms to know when to open windows or run an air purifier for better sleep and comfort. Offices and meeting rooms: Track CO2 concentration during meetings to optimize ventilation, improve concentration, and reduce the risk of stuffiness. Classrooms and childcare: Keep a record of air quality and receive app reminders to ventilate or purify the room, helping maintain a healthier environment for children. Why customers need this device To get more accurate, interference‑resistant CO2 readings than typical semiconductor sensors. To monitor both CO2 and particles simultaneously for a fuller picture of indoor air quality. To maintain awareness and control of indoor air quality remotely via WiFi and the mobile app, without needing to keep the device display on continuously. Reliable features summary Independent CO2 NDIR sensor for higher accuracy and anti‑interference Laser particle sensor for particulate monitoring Automatic screen brightness adjustment Screen auto‑off for energy saving while data continues to transmit Built‑in WiFi for cloud connection, intelligent analysis, and mobile app access How to use Plug in and connect the device to your WiFi network. Install and sign into the mobile app to view real‑time values and history. Place the device in rooms where occupancy and ventilation decisions matter, such as living rooms, meeting rooms, or classrooms. Rely on the app and device readings to guide ventilation or air purification actions.