M4000-EIOC SKU M4000-EIOC-1224 Single Elevator Controller board for up to 16 floors. (Maximum of x4 EIOC per M4000-DDC4 chain). Requires single ELEV-RELAY per EIOC. Please log in to see price or purchase this item Request an account (0)No Reviews yet Line Comment Special Price Ratings & ReviewsNo reviews availableBe the first to Write a Review