Particle Counter 3.2in TFT Color Screen Data Record Dual Power Supply Dust Particle Monitor The product adopts the principle of scattering, can monitor air quality, temperature, humidity. It has 999 groups of data records, can view the data curve, with 3.2 inch TFT full color display, automatic measurement, real-time date and time, rechargeable battery or separate external USB power supply, stable data, etc. Specifications: Color: Grey and Yellow Model: TC-8100 (Grey and Yellow) 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℃ Range, ±2℃ Accuracy, 0.01℃ Resolution Humidity Measurement: 0 to one hundred percent Range, ±3% Accuracy; 0.01% Resolution Built in Battery: 3.7V 2000mAh 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 Precise: ±12μg/m³