With the Mobile Pro or Total Home service plan, you can receive text or email notifications for any sensor that is left open for a certain amount of time. This guide will walk you through setting that up.
First login to your Alarm.com Account and click on the "Notifications" tab at the top, then click the "New Notification" button.
Click on the link for "Sensor-Left-Open" in the new notification popup.
On the next page you can enter a name for this notification and select which sensor you want to monitor and how long it can be left open before you want to be notified. Then select if you always want to be notified or if you only want to know if the sensor is left open during specific times. Then you can add the contacts who should be notified and then click "Save Notification".
You will now receive a notification if that sensor is left open for more than the amount of time that you set.