HONEYWELL 621-0019R Description Description HONEYWELL INPUT MODULE PULSE/QUADRATURE INPUT Related products HONEYWELL 621-3550 HONEYWELL DM106-0-A-00-0-R-1-00000-000-E0 HONEYWELL 621-0009 HONEYWELL 620-0053 HONEYWELL DC3002-0-20A-2-89-0111-EN HONEYWELL 621-0010