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Sound-activated devices

We have a range of hardware to help you improve accessibility and prevent dangerous door wedging. Here you’ll find door retainers, free-swing closers and deaf alerts.

Fire door systems - InSite


Dorgard is a wireless fire door retainer that holds open fire doors, allowing them to automatically close on the sound of the fire alarm.

Fire door systems - InSite

Dorgard SmartSound

Dorgard SmartSound is a wireless solution for legally holding open fire doors, automatically releasing them to close when a fire alarm sounds. Dorgard SmartSound has noise-filtering technology for more accurate listening.

Fire door systems - InSite

Freedor SmartSound

Freedor SmartSound is an overhead door closer which makes opening and closing a fire door effortless. A wireless device, it allows you to place your door open in a convenient position and closes on the sound of the alarm.

Fire door systems - InSite


Deafgard is a portable device which alerts people in an emergency. Designed for the deaf and hard of hearing, Deafgard has a vibration pad and flashing light which wakes people upon the sound of the alarm.

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