- Improves heat dissipation during operation to prevent overheating and delivers more accurate measurements. - Accurately monitors CO2, TVOC, HCHO, and humidity and temperature for real-time indoor air surveillance. - Note: this device monitors indoor air quality. Please close doors and windows before testing to ensure data accuracy; otherwise data may be inaccurate. We recommend running the monitor for at least 60 minutes before reading data. - 1200 mAh battery provides reliable power without frequent recharges. Use scenarios: - Home: track CO2, TVOC and HCHO levels in living rooms or bedrooms to maintain healthy air and comfort. - Office or classroom: monitor air quality to optimize ventilation and occupant well-being. - Renovation or new furnishings: assess emissions (HCHO, TVOC) to ensure a safe indoor environment.