Dorgard SmartSound Fire Door Retainer

Dorgard SmartSound is a battery operated fire door retainer fitted with the new SmartSound technology, which means it is not triggered by loud noises and does not need to be trained-in to listen and learn the sound of your fire alarm.  It can be installed in under five minutes and can be suitably fitted to any fire door, including heavy fire doors up to EN power size 7.