For future readers of this thread who may be considering this device - it's a great humidity sensor - most definitely worth trying out!
But...
When you first get it, be VERY careful opening the cover to remove the battery tab. I broke the setting-button on my first one since the cover was on so tight and it ended up snapping the button connection when it finally popped. Just be very careful working the cover off - start with the end opposite the button and carefully work the edges around.
This lil guy is a world better that that raging P.O.S. Aeotec aerQ I was using before. I'm just using the stock Hubitat driver and the humidity values get reported fast enough for my needs (triggering a bath fan).
