<![CDATA[iFixit - Answers With Device "Netatmo NWS02IN"]]> https://www.ifixit.com/Answers/Device/Netatmo_NWS02IN?rss=yes en-US Sat, 04 Apr 2026 03:19:43 -0700 <![CDATA[Netatmo NWS02IN: CO2 Level Reads Too High]]> The unit seems to function fine, except the CO2 monitor is showing a reading of precisely 5000ppm. I’m confident this is incorrect based on the air flow and room usage. I’ve followed the Netatmo instructions to reset, but it goes back to this reading.

Any suggestions on how to fix either via hardware or software?

Update (11/12/25)

Alright, here is the disassembly:

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Turn the flat white bottom cover counterclockwise to unlock.

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Remove the (3) Torx T6 screws from the bottom plate to reveal the antennas.

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Gently push the bottom section upwards to slide the internals out of the aluminum casing. (The translucent cover for the LED may fall out.)

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Remove the (2) PH00 screws holding the black circuit board casing and the white plastic casing together.

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The two halves of the circuit board and black case can be separated by hand, revealing the CO2 sensor (?) on the back of the board.

⟐ Commented November 12, 2025 at 21:26 MST

]]> https://www.ifixit.com/Answers/View/925487/CO2+Level+Reads+Too+High https://www.ifixit.com/Answers/View/925487 Wed, 12 Nov 2025 21:26:53 -0700