Honeywell 621-2101 Description Description Honeywell 115V AC Isolated Output 6 Point Related products HONEYWELL 621-6575 HONEYWELL DC3002-0-20A-2-89-0111-EN HONEYWELL 621-3560 HONEYWELL 51304156-100 HONEYWELL 621-9937 HONEYWELL 621-6550