Here in the UK there’s a very cost effective ZigBee open/close sensor
available from SwannOne.
It doesn’t play nicely with SmartThings though. Although the device is HA
1.2 compliant, and connects OK to the ST hub, after about an hour or so the
connection is dropped and it no longer responds.
The devices work well, obviously, with SwannOne’s own hub - so a reliable
connection SHOULD be possible.
There’s more details in this thread:
I reached out to the UK SmartThings support team, and they replied: “With the SwannOne, not being officially compatible there is not a lot of support we can provide from here. You are going down the right path with reaching out to the community, unfortunately it seems allot of people are having the same issue, it would seem to be a SwannOne hardware incompatibility. It is possible that they work on a Zigbee channel that is on the cusp of the SmartThings range.”
They also suggested posting here, so that’s what I’m doing!
Can anyone help?