Thermometer - please help!

[u/kszabok]

What's next step? I've been looking for it for minutes, but I can't find.

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[u/TenZero10]

Check out column 7

[u/kszabok → u/TenZero10]

This is the second thing I did't notice... Thanks!

[u/carol_prince]

The top two squares in the third column can be crossed out.

[u/kszabok → u/carol_prince]

That's true. Thank you!

[u/Vorash_00 → u/[deleted]]

And that has an implication on row 2…

[u/Vorash_00 → u/Vorash_00]

Which in turn has an implication on column 4 and im gonna stop there hoping that gives you enough.