August's latest smart locks warn if you left the door open
 

If you've lived on this planet long enough, you've probably had that moment where you thought you'd closed the door on your way out, only to find out that it didn't quite shut. But how are you supposed to know if no one's at home to tell you, and eve...

https://www.engadget.com/2017/09/19/...ith-doorsense/