Exit/Entry Delay not working.
Make sure you set the sensor in it’s settings so it’s shown as Main Door.
Great suggestion @Eagle328!
@Cecilia, configuring your Contact Sensor as a Main Door, will allow the option for a delay to be applied. If it were listed as a secondary entryway or window, the delay does not occur and triggering the Sensor in an armed mode would lead to immediate siren. Check out our help center article for steps on setting this up.