Dorgard SmartSound is a retrofit door retainer that holds open fire doors legally and compliantly, taking four minutes to install. The device listens for the patterns of a fire alarm, designed to ignore other background noise. Once the fire alarm is activated, the door closes, ensuring secure compartmentation to prevent the spread of fire and smoke.
Dorgard SmartSound prevents door wedging, reduces touch points and increases ventilation within the building, available in a black or white finish. Additional features include night time release, sensitivity adjustment, short alarm filter and a delayed release function.
Dorgard SmartSound is surface mounted, meaning it doesn't come with the disadvantages of hardwired door retainers, such as intrusive installation or exposed penetrations.