Dorgard Pro is a fire door retainer which holds open fire doors legally, allowing them to automatically close when an alarm is activated. Prelude Alarms are proud to say that we are fully trained and are the preferred supplier to Fireco.
Dorgard SmartSound – Holds fire doors open, allowing them to close on the sound of the alarm, not triggered by background noise.
Dorgard Pro – An installer exclusive, Dorgard Pro’s transmitter connects to any system, allowing fire doors to close when the alarm is activated.
Dorgard – A wireless fire door retainer that allows fire doors to automatically close on the sound of an alarm, preventing the spread of fire.
Freedor -Freedor is a free swing device which reacts to a fire alarm and automatically closes the door in an emergency.
Deafgard -Designed for the hard of hearing, a vibrating pad and flashing light wakes people up on sound of an alarm.