Item Type: PM2.5 detector_x000D_ Material: Plastic_x000D_ Model: A1 communication_x000D_ Screen: 2.8in LED_x000D_ Scope of Application: Home, car, office, outdoor_x000D_ Power Supply: DC5V, MicroUSB interface_x000D_ PM2.5 Measurement Technical Indicators: _x000D_ Measuring Range: 0-2048ug/m3_x000D_ Display Accuracy: 1ug/m3_x000D_ PM1.0 Measurement Technical Indicators: _x000D_ Measuring Range: 0-2048ug/m3_x000D_ Display Accuracy: 1ug/m3_x000D_ PM10 Measurement Technical Indicators: _x000D_ Measuring Range: 0-2048ug/m3_x000D_ Display Accuracy: 1ug/m3_x000D_ Temperature Measurement Technical Indicators: _x000D_ Measuring Range: 0-50_x000D_ Measurement Accuracy: 2_x000D_ Humidity Measurement Technical Indicators: _x000D_ Measuring Range: 20-90%RH_x000D_ Measurement Accuracy: 5%RH 1Intelligence is derived from ARM microcomputer processor. ARM chip is 10 times faster than similar products using 8?bit computing, which bring more accurate detection and smoother system 2No need to calibrate, USB power to use without needing of warm up 3Equipped with fan, which guarantee good heat dissipation effect 4Using electrochemical principles, multi?layer special glass fiber microporous filtration can effectively eliminate the interference of ethanol, carbon monoxide, etc. 5The monitoring function is realized by electrochemical principles, and data processing algorithms are added to obtain stable and accurate data 6Thousandth display, users does not need to calibrate, the reading can be read after the boot is stable1 x PM2.5 Detector1 x Data Line1 x User Manual