The weather proof door holder is designed to hold open fire doors for convenient access through busy door ways and release them for closing when an alarm is triggered. It is designed for wall mounting and is supplied complete with a keeper plate for fixing to the fire door. Both parts are constructed from steel and are zinc plated. The strong construction makes this magnet ideal for most applications in all types of building.The high level of ingress protection also means that this magnet is particularly suited to use outdoors and in maritime applications. Electrical connection is via an IP65 connector supplied with the magnet.