humidity of indoor module wrong by 10%

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tobiasf
Posts: 4
Joined: 09 Apr 2020, 14:29

humidity of indoor module wrong by 10%

Post by tobiasf »

My station is running since years. Recently I noticed that the humidity of one indoor module was implausible and significant lower thane all others.

Today I tested and placed all modules to the same place. I do not have a precise calibrated device as reference so I tested against each other. The temperature off all modules is within a range of 0.5 deg to each other. And the humidity is in a range of 2% of all devices beside the one indoor module. This is 10% less than the others. What I did not do so far is to check at different levels to see if it is an offset only.

The problem is that the value for offset calibration in the app I can set to 5% as maximum. 10% is what I need.

I cannot say exactly when it started. I also do not know when latest software update happened but status of today is:

station hardware version: V2
station firmware version: 177
module firmware version: 50 (all modules)
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