Features: Air Quality Monitor: There are 2 models for option. TC-8100 features 3 channels to detect the number of 0.3um, 2.5um particle size dust, the concentration of PM2.5 and PM10, AQI Grade, temperature and humidity. TC-8200 features 6 channels to detect the number of 0.3um, 0.5um, 1.0um, 2.5um, 5.0um, 10um particle size dust, the concentration of PM2.5 and PM10, and it can detect the class of Class 100 clean room and below clean room, temperature, humidity and AQI Grade. 3.2 TFT Color Screen Comfortable Buttons: Data Record, Curve Graph PM2.5 Alarm: Dual Power Supply: Rechargeable battery or USB cable powered. Built in 2200mAh battery, has about 9 hours long working time, easy to be charged via USB interface. And the battery cover is easy to be removed and installed, making it convenient to replace battery. Tripod Support Wide Application: Comes with a tripod for supporting, more convenient to use. Applied to clean room inspection; industrial production of electronics, optics, chemicals, food, medicine and health, biological products, aerospace, etc.; filter seal inspection; particle pollution source detection. Specifications: Color: Grey Yellow/ Grey Red (Optional) Model: TC-8100 (Grey Yellow)/ TC-8200 (Grey Red) Material: ABS Concentration Resolution: 1μg/m³ Flow: 1 liter/min (2.83L=1L*2.83) Response Time: about 1s Boot Stabilization Time: about 10s Temperature Measurement: -10~60& 8451; Range, ±2& 8451; Accuracy, 0.01& 8451; Resolution Humidity Measurement: 0~100% Range, ±3% Accuracy; 0.01% Resolution Built-in Battery: 3.7V 2200mAh Battery Charging Voltage: 5V/ USB Item Size: 222 * 80 * 46mm / 8.74 * 3.15 * 1.81in Item Weight: 311g / 10.98oz Package Size: 26 * 21 * 8cm / 10.24 * 8.27 * 3.15in Package Weight: 738g / 1.63lbs --TC-8100 3-channel Particle Size: 0.3μm, 2.5μm, 10μm PM2.5 Range: 0~1000μg/m³ PM2.5 Precision: ±12μg/m³ --TC-8200 6-channel Particle Size: 0.3μm, 0.5μm, 1.0μm, 2.5μm, 5.0μm, 10μm PM2.5 Range: 0~1000μg/m³ PM2.5 Precision: ±10μg/m³ (0~100μg/m³), ±10% (100~1000μg/m³) Number of Particles Output Range: ≤2,000,000 Granule/L Package List: 1 * Dust Particle Counter 1 * USB Cable 1 * Tripod 1 * User Manual (English)