500/ex) spt bulkhead mounting 24 way(ee 4050 b-904905) autroprime main circuit board (ee 4050 b-bsa-200) service pack std. 22 (ee 4050 b-110233x 19) panel alarm output module, 4x 24 vdc/1 a(sounders) (ee 4050 b-bsb-310) precipitation gauge (ee 4050 b-50202)
