HONEYWELL 621-3580R Description Description HONEYWELL PC BOARD INPUT MODULE 24VDC 18-28VDC 6-15MA Related products HONEYWELL 621-9934 HONEYWELL 621-6575 HONEYWELL DC3002-0-20A-2-89-0111-EN HONEYWELL 621-3550 HONEYWELL 621-9937 HONEYWELL 621-3560