Air Dust quality Meter monitor Digital LCD Backlight PM2.5 detector
PM2.5 HCHO TVOC AQI PM1.0 PM10
Support 2.8 "TFT LCD screen display, 320 * 240 pixels.
High-speed ARM master program
Simple operation screen
Using advanced laser PM2.5 detection probe, support PM2.5 detection.
Using independent HCHO and TVOC air detection probe
HCHOtesting value Exceeded alarm and Alert alarm
Air Quality Index, showing the current AQI value
Support rechargeable highcapacity lithium battery,long time working
l Particle measurement range : 0.3-1.0; 1.0-2.5; 2.5-10 micrometer (ug/m3)
l Particle mass concentration effective range (PM2.5 standard value): 0-999 μg/m3
l Temperature test, temperature range: -20 to 70 degrees
l Humidity test, humidity range: 20% to 90%
l LCD: 2.8” 320×240 pixels
l The input voltage is: 5V 1A
( Remark : When each booting up, there will be 200 seconds on screen automatic countdown. This is the formaldehyde preheating process. HCHO and TVOC will not display real time value until 200 seconds preheating process is completed)
Formaldehyde correction method
When the formaldehyde content is not in the normal range, the machine need to be calibrated. Correction method: Put the device into a place of good air quality ,turn it on , let it aside for 5-10 minutes,then quickly click the power button twice . you will see the HCHO value is 0.000 and TVOC value is 0.000, the calibration is completed. After correction well, go to do the next test.