Sonicco Acoustic Fire Door Retainer/Release Unit. The Shuttle model is a sophisticated, wire-free, intelligent learning electronic device which legally holds open a fire door until the fire alarm sounds. It is an acoustically triggered fire safety device designed to allow closure of the fire doors promptly during an emergency. Fully compliant with BSEN1155 incorporating EN6134 and accepted by UK Fire Brigade.

The Shuttle has been designed to learn and recognise each building's individual fire alarm sound and will not react to any other sounds. Once installed on the door follow the menu programme instructions, select "learn new alarm" whilst the buildings Fire alarm is sounding and the unit will record this sound. Hold open the door by pressing the plunger onto the floorplate. In the event of the fire alarm sounding the unit will retract the plunger and allow the door to close. On completion of set up always check the unit functions correctly and the door closes by carrying out a full Alarm test. Periodical checks in compliance with Fire regulations are recommended.

  • Easy installation and setup complete with an instruction guide
  • Multi-functions as indicated on the LCD screen such as automatic timed night closure
  • Use 2 x C/LR14 alkaline or lithium type batteries NOT INCLUDED
  • Comes with a 5-year warranty
  • CE Marked and conforms to BS 7273-4:2015
  • DOP certificate available here
  • Datasheet available here


4-year battery life Only closes to fire alarm LCD display Night release Activates to voice, intermittent and continuous alarms Holds fire door open at any angle
Sonicco Shuttle Yes  Yes  Yes Yes  Yes  Yes 
Agrippa No   Yes  Yes  Yes  No  No 
Dorgard  No  No  No  Yes  No  Yes 
Dorgard Smartsound  No  No No  Yes  No  Yes 
Union DoorSense  No No  No  Yes  No  Yes 
 Correct as of June 2018

Technical Details

Specifications of the unit including the dimensions of the unit and the parts you will receive. This drawing is the property of Carlisle Brass Limited, all design rights reserved.

Price Matrix

Unit Price


Technical specification
Download Datasheet Download Datasheet

Trade Accounts

Login to your account to see all the latest prices on our premium products

How Do I Get A Trade Account?

12 RegAI and 15 DipGAI
qualified team members

Top 10 housing developers specify
Carlisle Brass

Gold Member recognition by Supply
Chain Sustainability School