Holder and release smoke detector designed to allow fire doors to remain open for easy passage while releasing doors in an emergency.
This medium-duty overhead door holder and stop offers additional door control but is a completely concealed solution to keep the door aesthetically pleasing.
The 81 Series heavy-duty hold open features and stops provide the most effective shock-absorbing capacity, helping to protect the doors, frames and hardware.
The 100 Series is a heavy-duty concealed overhead hold-open and stop preventing door, frame or hardware damage.
The 90 Series is a robust hold open and stop overhead designed for heavy duty applications.
The 450 Series medium-duty hold-open features and stops provide reliability and versatility for all light- to medium-duty applications.