Setting delay to indicate door left open

General Discussion
1

I have ben asked to supply devices for a client who wants a notification and/or alarm to activate if a front door is left open. Can this be done with SmartThings Multisensor

2

This can be done with any open/close/contact sensor (ST, Lowes, Ecolink, etc.). It’s not the device that does this, but a smartapp (like custom rules in SHM).

3

I have this set for my front door as the kids have left it open before. It works well.

4

I have this on both basement doors and on the fridge & freezer doors. If I remember correctly the app is " something left open" in ST app marketplace.
Separate rule turns off the heat if any doors have been open >5min.