1. This product is a simple 3-in-1 air quality detector that can measure PM2.5, temperature and humidity. It combines a laser dust air sensor with an internal fan to monitor PM2.5, temperature and humidity in real time. If the PM2.5 reaches (the set) all alarm values, the monitor will trigger a danger alert.

2. Air quality is visible. The carbon dioxide detector conducts an "examination" of the air around you.

3. LED screen. The test results show that you can see the real-time monitoring data of temperature/humidity/CO2 on the product display.

4. CO2/temperature/humidity, real-time monitoring. This product can simultaneously detect the real-time data of CO2/temperature/humidity. It is multi-functional in one device, saving money and being convenient.

5. High-performance chip, combined with infrared sensor technology, accurately calculates CO2 results, and provides clear and intuitive digital display, allowing you to understand the current air quality status at a glance.

6. Exceeding alarm indication. When the alarm sounds, it is a buzzer alert. When the CO2 concentration exceeds the standard, the instrument will promptly issue a warning to remind you to take ventilation measures to ensure your breathing problem.

7. Supports manual/automatic calibration. Manually set the opening and closing of the alarm function.