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These are great. I have two of them and access the readings over Bluetooth using some Python code: https://github.com/Anrijs/Aranet4-Python (there's also a mobile app which I've never used)

The eink display is really nice and if you disable Bluetooth the battery seems to last forever.

It's 40% off right now which makes me tempted to pick up a third!

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This python code looks fantastic. Worked right out of the gate. Thanks!

Also I was not aware of the Aranet Radiation sensor. There goes some of my fun budget towards picking one of these up.

Also there is a Go equivalent (https://pkg.go.dev/sbinet.org/x/aranet4) which works well on Linux and https://github.com/ryansouza/aranet4-exporter-go can be used to export the data to prometheus.

That 40% off is a bit misleading, more like 10% off, as you've been able to get them for ~$165 on Amazon forever.

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