Fast, reliable air quality readings Infrared sensor with rapid response and stable measurements. Updates every second (1 s refresh) for near–real-time monitoring of indoor air. Measures carbon dioxide (CO2) concentration, temperature, and humidity in one device so you can quickly see the conditions that affect comfort and health. Clear, easy-to-read display Intelligent color screen shows measured values and changes color to indicate air quality levels, making it simple to recognize when ventilation or action is needed. Large, clear digits let you read CO2, temperature, and humidity at a glance. Portable, convenient power Built-in 1200 mAh rechargeable battery supports wireless operation and practical mobile use. Type-C charging interface for fast, universal recharging. Standby time approximately 240–360 minutes (about 4–6 hours) between charges. Why you need it Detect rising CO2 and poor ventilation early so you can open windows, run HVAC, or move activities to a safer area. Monitor temperature and humidity to protect comfort, prevent mold-friendly conditions, and support sensitive occupants such as children, older adults, or people with respiratory concerns. Compact, battery-powered design lets you carry it around the home, office, or when traveling to evaluate indoor air quickly and without wires. Practical applications Home: Check CO2 and humidity in bedrooms, living rooms, nurseries, and kitchens to keep the family comfortable and the air safe. Office and classroom: Monitor CO2 levels to optimize ventilation and maintain focus and productivity during work or lessons. Travel and shared spaces: Portable, wireless monitoring for hotel rooms, meeting rooms, or rentals where ventilation and indoor conditions are unknown. Compatibility and performance notes Charges via standard USB Type-C power sources (power adapters, laptops, power banks). Designed for continuous wireless detection during battery operation; relies on built-in infrared sensing for CO2 readings and onboard sensors for temperature and humidity. Display color changes provide an immediate visual cue; numeric values supply precise data for decisions. What you get: a compact, easy-to-use air detector that provides fast, second-by-second readings of CO2, temperature, and humidity, a clear color display for quick alerts, and Type-C rechargeable convenience for portable, wireless use.