IQ Air Airvisual Node Pro

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1

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

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2

two main circuit board, one in a green showing USB connect and charging for LiPo battery

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3

a very special design to create the air flow into the sensor

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4

CO2 sensor with senseair.com URL

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5

main circuit board showing a big LiPO battery and PM2.5 sensor

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6

PM2.5 sensor

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7

PM2.5 sensor (back with circuit board)

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8

PM2.5 showing the fan covered in dust

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9

not expecting this complex circuit board. A quad-core MCU, Realtek wifi, Samsung memory chip.

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10

not seeing much dust inside the sensor. While the color of the fan makes it hard to see the dust

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11

packed up the unit after cleaning

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12

looking good. Testing without the plastic shell.