Feature: 1. Multifunctional and Accurate: The air quality meter has built in professional sensor, which can accurately detect the current indoor PM2.5, PM1.0, PM10 particles, and humidity in the air for a healthier living environment. 2. Portable PM2.5 Detector: The mini air quality meter is small and lightweight, which is easy to carry. You can check the indoor and outdoor air quality anytime, anywhere to observe the air quality. 3. Real Time Monitoring: LCD display of monitoring values, allowing you to stay informed about indoor air conditions at all times. Integrated humidity detection function provides insight into indoor humidity levels, helping create a comfortable living environment. 4. Large Capacity Rechargeable Battery: The air quality meter has a built in 1000mAh large capacity rechargeable battery, which can last for long hours on standby when fully charged. 5. Multi Application: It is widely used in various indoor and outdoor settings and can effectively prevent harm to the body from PM. Simple interface design, convenient operating with no complex setup steps required, just turn it on and use it as your ideal helper in daily life. Specification: Item Type: Digital Air Quality Meter Material: ABS Weight: Approx. 125.00g / 4.41oz Size: Approx. 85x51x17mm / 3.35x2x0.67in Display: LCD Display Refresh Rate: 2 Seconds Concentration Measurement Range: 0-1000ug/m³ Digital Accuracy: ±(2ug/m³+5%) Battery Capacity: 1000mAh Polymer Lithium Ion Battery (Shipped with Built in Battery) Charging Method: Type C. Package List: 1 x Digital Air Quality Meter1 x Data Cable