15-in-1 air quality detector for complete home monitoring. It measures AQI, carbon dioxide (CO2), PM0.3, PM1.0, PM2.5, PM10, formaldehyde (HCHO), and total volatile organic compounds (TVOC), together with temperature and humidity for a full picture of your indoor environment. 2.8-inch TFT color display for easy data visualization at a glance. Connects to Wi-Fi so you can track readings remotely through the app, set customizable alarm thresholds, and review historical data by day, month, or year. Visual and audible alerts protect your space. The display color changes by air quality level (green for good, orange for moderate, red for poor) and audible alarms sound when measurements exceed set thresholds, enabling immediate action. Precise sensing technology. High-sensitivity semiconductor sensors deliver accurate results: CO2 400-5000 PPM (±5%), PM2.5 0-999 μg/m³ (±10 μg/m³), temperature -10 to 50°C (±2°C), humidity 0-99% RH (±5% RH). The device also detects fine particles PM0.3, PM1.0, and PM10 for a thorough assessment of air quality. Practical use scenarios: - Living room monitoring to optimize ventilation and comfort for family activities. - Nursery or bedroom surveillance to safeguard sleep environments for children. - Kitchen or near furniture to detect VOCs and HCHO, guiding ventilation during cooking or after new purchases. Trusted, professional performance in a compact design with clear readouts, remote monitoring, and proactive alerts to help you manage your indoor air quality effectively.