The Doormouse fire door holder from Geofire is a surface mounted electromagnetic door holder/retainer connected to the fire alarm panel. The unit sits on the wall behind a fire door and magnetically holds a steel plate fitted to the fire door. If a fire is detected or the power supply fails the fire door retainer releases the door and allows it to close. Brand new item in original packaging 24V power supply Manual override release switch Zero residual force Approved to BS EN 1155 and CE marked Includes fitting instructions IP51 Protection
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