F/U. The Alpro AL150 series electric door strikes is a RIM security electric strike designed for use with the majority of popular rim latches used on timber door applications. The unit is 12/24v selectable with a stainless steel striker and is easy to install. It also has a compact cast aluminium body enclosed in one-part case and is finished in Black polyester powder paint.. Fail safe/Fail secure reversible. Stainless steel striker. IP56 rated. 6 Year guarantee