I was cleaning the windows in my house and began opening the window, I opened the window about 2 inches and the alarm started going off because I forgot I had it armed. I quickly closed the window and the siren stopped going off. I went over to the panel and it showed “Armed Stay” just as if an event never happened. I went over to recreate the problem again but it went off and stayed on.
Has anyone else had this issue? Seems pretty serious if a burglar were to open a door and quickly close it out of surprise only to not be detected at all.