Humidity meters and their sensors.

Humidity meters are a useful device to ensure that your home or workplace is kept at a reasonable humidity to avoid problems caused by dampness or extreme dry conditions.
Here's a look at how you can check their accuracy and how they work.
If this video seems a bit rushed it's because the original long video intended for today repeatedly failed to upload.

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Видео Humidity meters and their sensors. канала bigclivedotcom