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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
Featuring either uni-directional (HR50-UNI) or bi-directional (HR50) detection modes
Offers straightforward installation for quick maintenance and reduced operational downtime
particularly crucial for low-height doors or public-facing areas
repair technicians
Energy-Saving Uni-directional Detection:Reduces unnecessary door activations by detecting approaching pedestrians only
Dorgard LL800 Hold-Open Fire Door Retainer Black roller shutter Featuring either uni-directional (HR50-UNI) orDorgard LL800 Hold Open Fire Door Retainer BlackThe Dorgard LL800 is a trusted wireless fire door retainer that allows fire doors to be held open safely at any angle while still complying with fire regulations. When the fire alarm sounds, the unit automatically releases the door, ensuring critical fire protection is maintained. Easy to install and battery powered, it is a reliable and cost effective solution for schools, hospitals, offices, and public
US$ 12.86
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