Check window thickness
This device needs some getting use to its operation. My glass thickness requires me to use the maximum magnetic level. It is important to make sure the window inside and out is completely wet with cleaner. I did drop the outside portion 2-3 times due to the magnetic level being at its max and I believe the glass is too thick when it dropped I had the safety sting attached but it attached to the metal siding below.
Rating: 5 stars