In the event of a fire, the device will automatically release enabling the fire door to close by responding to the sound of a fire alarm. When the alarm sounds at 65db or more (as per BS 5859-1) for 14 continuous seconds, the Dorgard will release allowing the fire door to close normally.
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The Dorgard is easy to install on the bottom of a door in under 5 minutes using just 4 screws. As the unit is battery powered with a 3 year battery life, there is no wiring required. This unit improves access throughout buildings in line with the Equality Act (2010).
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brand new red fire door retainer. closes on activation of fire alarm in box unopened
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Dorgard is listening for a continuous fire alarm of 65dBA or higher. Dorgard requires no wiring as the unit is battery operated. Manufacturer Reference - DG2000. Improves access throughout buildings in line with the Equality Act 2010.
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Dorgard 478-5513 Auto Release Fire Door Closer
eBay
The Dorgard is easy to install on the bottom of a door in under 5 minutes using just 4 screws. As the unit is battery powered with a 3 year battery life, there is no wiring required. This unit improves access throughout buildings in line with the Equality Act (2010).
eBay
The Dorgard is easy to install on the bottom of a door in under 5 minutes using just 4 screws. As the unit is battery powered with a 3 year battery life, there is no wiring required. This unit improves access throughout buildings in line with the Equality Act (2010).
eBay