Honeywell 621-1201 Description Description Honeywell 230V AC / DC Isolated Input 6 Point Related products HONEYWELL STD924-A1A-00000-MB.3H+XXXX HONEYWELL 621-3580 HONEYWELL C7027A1031 HONEYWELL 621-9934 HONEYWELL DC3002-0-20A-2-89-0111-EN HONEYWELL 620-3590