Honeywell 621-3560 Description Description Honeywell 16 Point 24 V DC Input Related products HONEYWELL 620-0053 HONEYWELL STD924-A1A-00000-MB.3H+XXXX HONEYWELL 620-0041 HONEYWELL 51304156-100 HONEYWELL AX51-051-001 HONEYWELL 621-3560