1、Using for ARM chip, 8 bit operation speed is 10 times, the detection is more accurate and the system is smoother. 2、No need to calibrate and warm up USB can be used when power on, with fan, good heat dissipation effect. 3、Using electrochemical principles, multilayer special glassfiber microporous filtration can effectively eliminate the interference of ethanol, carbon monoxide, etc., and the measurement accuracy is greatly improved. 4、The formaldehyde monitoring function is realized by electrochemical principles, and data processing algorithms are added to obtain stable and accurate data. 5、Dry quantile display, the user does not need to calibrate, the reading can be read after the boot is stable. 1 x Detector1 x Data Line1 x User Manual  Item Type: PM 2.5 Detector Material: PlasticModel: 1602+G5Scope of Application: Home, car, office, outdoor 1. Power Supply: DC5V, MicroUSB interface 2. PM 2.5 measurement technical indicatorsMeasuring Range: 0-2048ug/m3Display Accuracy: 1ug/m 33. PM 1.0 measurement technical indicatorsMeasuring Range: 0-2048ug/m3Display Accuracy: 1ug/m 34. PM10 measurement technical indicatorsMeasuring Range: 0-2048ug/m3Display Accuracy: 1ug/m 35. Temperature measurement technical indicatorsMeasuring Range: 0-50℃Measurement Accuracy: ±2℃ 6. Humidity measurement technical indicatorsMeasuring Range: 20-90%RHMeasurement Accuracy: ±5%RH