- Multi-Functional Air Quality Monitor: This 5-in-1 air quality meter measures carbon dioxide (CO2), formaldehyde (HCHO), total volatile organic compounds (TVOC), temperature, and humidity. Ideal for use in homes, schools, restaurants, nurseries, social facilities, and vehicles. - Automatic Alarm System: The monitor features a built-in alarm that activates when CO2 levels exceed 1000 ppm, prompting you to ventilate the area. This ensures a healthier indoor environment for you and your loved ones. - Real-Time Updates: The device provides real-time air quality updates every second. It requires no calibration, making it user-friendly and convenient for immediate monitoring. - Accurate Detection: Equipped with a high-performance analysis chip, this detector precisely measures the weak currents generated through electrochemical reactions. It calibrates for 120 seconds upon startup, ensuring accurate readings. If data seems inaccurate, simply restart the device. Use Scenarios: 1. In restaurants, the monitor helps ensure the comfort and safety of patrons by keeping CO2 levels in check. 2. In schools and nurseries, it aids in maintaining a healthy air quality environment for children and staff. 3. In vehicles, it can alert drivers to harmful air quality levels, promoting safer travel.