The PH series electromagnetic locks retain all the great features of GEM’s electromagnetic locks and performance. They are designed with latest technology that hides the armature plate in an enclosure that serves as a door handle. The electromagnetic lock itself is installed in a vertical direction on the door frame. It is most suitable for metal doors and door frames and can be positioned on any type of inswing doors. The PH-450 and PH-900 series can be mounted directly onto the door and door frame with the necessary fasteners provided. Installation is simple and requires no special tools.