Dorgard SmartSound is a wireless solution that can legally hold open fire doors.  Featuring smart sound technology, as soon as alarm is activated, the plunger is released and the door will close.  

• Can be fitted to any door without the need for programming
• SmartSound listening technology — filters out common background noises
• Simple LED status lights
• Carpet friendly - anti-drag technology will not leave marks
• Works with heavy fire doors (up to 160kg and 1600mm width)
• Three-year battery life
• Three-year manufacturer’s warranty
• Easy installation
• Available in black or white
• Complies with BS EN 1155: 1997