Honeywell 621-0008 Description Description Honeywell Pulse Input 4 Channel Related products HONEYWELL DC3002-0-20A-2-89-0111-EN HONEYWELL AX51-061-001 HONEYWELL 621-3580 HONEYWELL 620-0041 HONEYWELL STD924-A1A-00000-MB.3H+XXXX HONEYWELL 621-9934