Third Reality temperature and humidity sensor

I have a thirdreality temp/humidity sensor in my electric humidor and it has proven to be quite accurate compared to my other six calibrated hygrometers. AAA batteries, also zigbee. In my opinion the only downside is size. It’s not huge but it’s not exactly tiny either. No regrets.

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

Third Reality temperature and humidity sensor runs on Zigbee, uses common AAA batteries. They are about $20 on Amazon but often cheaper with lightning deals or Prime Day.

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.

What options did the LLMs bring up that aren't DIY? Honestly, if you're willing to use Zigbee or Thread sensors that take AAA betteries (you could use rechargeable ones) you would have several good off-the-shelf options that work for a long time. I use Third Reality temperature and humidity sensors and a splash-proof one from Sonoff in the shower. They use AAA batteries.

Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23.