Comparison : Item # RSDDR420-0000001, RSD-DR-4-20MA-2A, 2A Remote Mount Solenoid Driver, DIN Rail Mount
Item # RSDDR420-0000004, RSD-DR-4-20MA-400MA, 400 mA Remote Mount Solenoid Driver, DIN Rail Mount
Item # RSDPCB420-0000001, RSD-PCB-4-20MA-2A 4-20 mA, 2A Remote Mount Solenoid Driver, PCB
Item # RSDSMB420-0000003, RSD-SMB-4-20MA-800MA-00-2 4-20mA, 800 mA Remote Mount Solenoid Driver, Metal Box, Strain Relief, 0-350mA Imin, 400-800mA Imax