Honeywell 621-1251 Description Description Honeywell 16 Point 240V AC Input Isolated Related products HONEYWELL 621-0010 HONEYWELL STD924-A1A-00000-MB.3H+XXXX HONEYWELL 620-1690C HONEYWELL 621-6575 HONEYWELL DM106-0-A-00-0-R-1-00000-000-E0 HONEYWELL 51304156-100