Changed to yet another driver.. the ST one, migrated by me, minutes ago...
Better logs anyway 
no Nulls.
Current States
battery : 24 checkInterval : 28920 contact : open temperature : 89.37
All things being equal, I prefer the Native Hubitat driver for it's features of Temp Threshold and Temp Reporting Interval.
Obviously if it's going to fall offline a lot, it's not "equal". So I'm going to let this percolate for a while.
