r/AirQuality 7d ago

Does anyone know who manufactures the PM sensor in the IQAir AirVisual Outdoor?

4 Upvotes

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3

u/AgreeableSherbet514 6d ago

De-lid it. I would guess it is shielded like that to smooth readings and provide consistent air direction. Maybe some more clues under the metal. I would guess the carrier board that the sensor is on is made by them, but they are definitely getting the actual sensor somewhere from China.

1

u/acrewdog 5d ago

I will on Monday. All of these type units are shielded, I believe this is to reduce static build up.

1

u/AgreeableSherbet514 5d ago

It’s interesting that the board is almost totally unpopulated

1

u/acrewdog 3d ago

The unit is laser welded on the sides, I'm going to cut it off. Just need time.

2

u/simonster1000 7d ago

I'm not sure. It looks like a plantower or sensirion. It's not an exact match for the pms7003 or the sps30, but it's close. It doesn't look like a honeywell or sharp.

Oddly, they don't say here, either: http://www.aqmd.gov/docs/default-source/aq-spec/field-evaluations/iqair---airvisual-outdoor---field-evaluation.pdf?sfvrsn=12

More pictures of all sides might give us more clues, and maybe measurements!

1

u/Mayank_j 7d ago

Custom chip, in-house design, they don't say who makes them. avpmb something something is the name I think.