Product review (3 stars): Network connection and batteries are fine. The devices were reset once however the issue ...
Device keeps skipping status updates. It is set to update every 2 minutes however there are issues daily with missed updates. Network connection and batteries are fine. The devices were reset once however the issue remains. If you need timely accurate updates (for a greenhouse perhaps) then buy something different.  If your heating system stopped functioning and the system was not updating declining temps you could end up with frozen plants before you were notified of an issue.  Never rely on one sensor system!