FAQ: Get a Notification if Something is Left On, Open, or Unlocked for X Minutes (2021)

[Mariano_Colmenarejo]

@DaWeav,
I am using this smartapp, which I modified from the original “left it open”, which allows selecting several sensors in the same application and it works well for me.

SmartApp "Left it Open" modified for use multiple Contact Sensors

In case anyone is interested: I have modified the “Left it open” smartapp, which warns if a door or window has been left open for a specified period of time. In the original smartapp you can only select one sensor of a door or window. If you need to control more sensors, you have to create a new app for each sensor to control. As I did not find another app to control several open sensors, it may exist, so I made a modified SmartApp “Left it Open-Multicontacts”: You can select the door or window sensors you want to control from all the ones you have installed in your location. A separate message is sent for each sensor when the set time is exceeded. In the successive messages, if any contact is still open, the total time that each sensor has been open is reported. In the original smar…

You can also use automations now:

1. Create a virtual or simulated switch or choose a light in your house for this purpose. You can name it “Reminder” for example.
2. Automation:

• IF door X is open for “y” minutes AND switch “Reminder” is “off” THEN switch “Reminder” turn “on” + turn it off after “z” minutes + Send Notification “…”

You can also add the AND condition “location mode” = x

In this way, it sends you the first notification after “y” minutes of being door open and the following every “z” minutes, if the door is still open