Applicable Humidity: 0-90% RH Color: White Material: ABS + LCD Battery Capacity: 900 mAh Gas Detection: Carbon Dioxide (CO2) Charging Port: Type-C Applicable Temperature: -10 to 50 ℃ Size: 80*53*18(mm) Weight: 150g Sensor: NDIR Infrared Operating Voltage: 3.7V DC Product Name: Air Quality Monitor CO2 Detection Range: 400-5000PM 100% Brand New and High Quality Real-time CO2 Monitoring: Detects CO2 concentration in real-time with an intelligent early warning system and a high-quality infrared NDIR sensor to prevent interference. Portable Design: Mini air quality monitor is small and lightweight, making it easy to carry and check air quality anywhere, anytime. Clear LCD Display: Features a full-color LCD screen with clear numbers for easy data comprehension at a glance. Long-Lasting Battery: Built-in 900mAh rechargeable USB battery provides up to 12 hours of working time on a 2.5-hour charge. Versatile Use: Suitable for homes, schools, offices, travel, indoor and outdoor spaces, agricultural planting, production warehouses, and more. Package Includes: 1 x Air Quality Monitor Note: Please allow for slight errors due to manual measurement. Actual color may vary slightly from the image due to different monitor displays.