LCN LCN Stop and Side Mounted Door Closer with Electronic Release from the 4040 Series

Stop and Side Mounted Door Closer with Electronic ReleaseFire/life safety closer/holders for fire and smoke-barrier doors. Designed to hold doors open in normal use but will release and automatically close doors under fire conditions. Heavy-duty cast iron cylinder for exceptional service life. UL-listed for use on fire-rated doors. The 4040SE SENTRONIC® is a heavy-duty, non-handed, non-sized closer/holder designed to provide single-point hold-open for fire and smoke barrier doors. The door is held open u...