Delphi DS150 which one is better

Hello please  people wth experience tell me which one of this 2 Delphi DS150 models is better and explain why, so others could know too. Photos in attachment.

I think model 1 was compact & newer than model 2 but it's same CPU & Relay

Hello please  people wth experience tell me which one of this 2 Delphi DS150 models is better and explain why, so others could know too. Photos in attachment.

hi the model 1 is better, it is the single pcb board, works more stable than the double pcb board(model 2).  and it is a bit more expensive.

Thank you, I have both of them I want to sell one because dont need both so I want to keep the better one.