Feature: 1. [Accurate Monitoring] The mini air quality monitor features high accuracy sensor to accurately detect PM2.5, PM10, and PM1.0 particles, providing reliable air quality information. 2. [Porous Design] Utilizing 3D porous airflow design, this PM2.5 monitor improves airflow penetration rates, enabling more accurate calculation of tiny particle concentrations. 3. [Advanced Algorithm] Equipped with the latest Ammorc algorithm, this device achieves rapid stabilization of readings within 1 to 2 minutes of startup, reducing data fluctuations. 4. [LCD Display Screen] The monitor features an LCD display screen that visually presents the detected air quality data, ensuring intuitive access to monitoring information. 5. [Portable Design] With its compact and portable design, this air quality tester is convenient to use, allowing for quick and easy monitoring of air quality wherever you are. Specification: Item Type: Air Quality Monitor Material: ABS, PC Size: Approx. 85x51x17mm / 3.35x2.01x0.67in Display: LCD Display Warm Up Time: 35 Seconds Refresh Rate: 2 Seconds Calibration: Manual Calibration Concentration Measurement Range: 0-1000ug/m3 Digital Accuracy: ±(2ug/m³+5%) Operating Humidity: 0-95%RH Battery Capacity: 1000mAh Lithium Ion Battery (Built in) Charging Method: Type C Input Voltage: DC5V Weight: Approx. 128.00g / 4.52oz. Package List: 1 x Air Quality Monitor (Battery Included) 1 x Connecting Cable 1 x Instruction Manual