Honeywell 620-3030 Description Description Honeywell 620-30 Processor Module Related products HONEYWELL 51304156-100 HONEYWELL 621-3552RC HONEYWELL 620-1690 HONEYWELL 621-3550 HONEYWELL 620-3590 HONEYWELL STD924-A1A-00000-MB.3H+XXXX