IQ Air Airvisual Node Pro
this unit brought to me because of abnormal readings showing very high PM2.5 while air is till thin. Loosing 4 screws on the bottom behind the sticky pads
two main circuit board, one in a green showing USB connect and charging for LiPo battery
a very special design to create the air flow into the sensor
CO2 sensor with senseair.com URL
main circuit board showing a big LiPO battery and PM2.5 sensor
PM2.5 sensor (back with circuit board)
PM2.5 showing the fan covered in dust
not expecting this complex circuit board. A quad-core MCU, Realtek wifi, Samsung memory chip.
not seeing much dust inside the sensor. While the color of the fan makes it hard to see the dust
packed up the unit after cleaning
looking good. Testing without the plastic shell.