Schlage Encode Low Battery Warning Email Trigger

I have Schlage Encode locks integrated with OR and I've been very happy with the integration automatically setting the door code for each guest.  I would love it if I could create a low battery trigger to email the cleaners to replace the batteries on their next visit when the batteries start getting low.  

This request is being merged into https://www.ownerrez.com/forums/requests/lock-battery-notification-for-schlage-lock-integration-and-potentially-others

All unique votes will be merged into the thread linked above as well.