AutoCall Thorn Board Assy 5130-074-03 8 zone transponder. The item "Grinnell AutoCall Thorn simplex Board Assy 5130-074-03- 8 zone transponder" is in sale since Tuesday, October 10, 2017. This item is in the category "Business & Industrial\Facility Maintenance & Safety\Fire Protection Equipment\Fire Alarms". The seller is "monica5600" and is located in Westfield, New Jersey. This item can be shipped to United States.