A fire door retainer is a mechanism intended to hold a fire door open in ordinary situations and release it to close in response to a fire alarm.
A fire door retainer is a mechanism intended to hold a fire door open in ordinary situations and release it to close in response to a fire alarm.
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Astroflame Dorgard SmartSound - Black
£175.34
Astroflame Dorgard SmartSound - Black Key Points: Fire Door Retainer A wireless solution for legally holding open fire doors. New SmartSound technology - not triggered by vacuum cleaners. Three-year battery...
A fire door retainer is a mechanism intended to hold a fire door open in ordinary situations and release it to close in response to a fire alarm.