The sound of the alarm itself is enough of a deterrent; but it should have been clear that it had to glue the elements with super Glue on the amounts of the windows and not with the adhesive strips provided; because after a few days of sunshine my 3 alarms are detached and fell to the ground (one in the middle of the night ... triggering the alarm recess!) falling my 3 alarms are broken ... so no, I do not recommend this product!