Attic sensor that can handle 0° to 150°F?

For plug ins:

  1. Homeseer HSM200. Operating range -4°F to 176
  1. Aeotec multisensor 6. Operating range 14°F to 122°. Can be mains powered via a USB cable. May be able to handle higher heat if it doesn’t have batteries: check with the manufacturer.
  1. zigbee Device manufactured by a community member, Quantities limited. I don’t know the operating range, you would need to check with the creator.

There are a few others, but I think those are the most popular.

I can’t say anything one way or the other about the sonoff. The brand is generally good, I just haven’t heard anything about that particular device.

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