Fire Door Retainers
Fire Protection Shop supply fire door retainers from suppliers Doormouse and Agrippa. The retainers from Agrippa are wireless magnetic door retainers suitable to use if you can not cable to a door holder. The retainers are available in white, black and brass. A chain keeper for the Agrippa doors can be purchased which enables for the wall mounted electromagnetic fire door holder to be used even when the door will not open fully to meet the magnet.
The Doormouse magnetic fire door retainers are a hard-wired device to legally hold open internal fire doors. The Doormouse retainers are available as 234 Vdc and 230 Vac supply voltage.