I came across the Keyco Air product in the ST library, but couldn’t find much information on it. It recently showed up on Amazon from some third party (On Amazon)
Links easily to the Keyco Air App in the Android store, and plugs directly into the wall:
After that though, the temperature units are not adjustable (Celsius only), nor is the polling time (every 5 minutes).
And despite being listed in the ST library, it can’t be added/linked and ends up getting stuck in a loop when I try to add the device.