Simplex 4251-21L

This is the “Local Alarm” variant of the Simplex 4251-21.

Also in the collection
Notifier F67ODT

Notifier F67ODT

Category :
F67ODT likely isn’t the model number of the unit as it was just a random number stamped on the wall...
Notifier BNG-1R

Notifier BNG-1R

Category :
This is the oldest Notifier pull that I own which opens with the modern Notifier key.
@