FWIW

I have been using these all winter in covered areas outside my house as well as the version with digital readout and have found them to be accurate. Not waterproof though.

Basically a thermometer/hygrometer that will chart temps by the hour/day/month and send the graphs to your phone via Bluetooth.

22 Grams for this one.

Just a toy and almost an ounce so probably not for most but since I donít embarrass easily I thought I would post this:

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