Best cheap battery-powered indoor temperature/humidity sensors? - Hardware - Home Assistant Community

Having just started with HA, I now want to put temperature/humidity sensors everywhere around my house. I’ve got no experience with electronics, but I’d be up for DIY and learning how to do it. Considering I want at least 5+ of these, I probably can’t go with a pre-made solution that’s as cheap as DIY. Also it’d be ideal if they’re battery powered, since some of the locations I want them haven’t got easy access to wall plugs for power cords.

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