The Dormakaba DK-KES900S Electric strike comes equipped with pre-load feature and is capable of opening when activated with up to 35kgs of pressure. Constructed of stainless-steel housing this lock offers a high level of security that can withstand up to 1000kgs of static force. It also offers dual voltage of 12VDC/24VDC and includes convenient fail safe/Fail secure functionality (changeable on site). The DK-KES900S also includes pre-drilled holes for optional extension lips and installation tabs for metal frames.