It will not work completely, between 7093 and 7094 there was a change to the voltage signal (approx 1998). For a short time after (until about 2002) we offered an adapter cable, but these are long since obsolete and out of stock. It may work in some limited way, I cannot say for sure, older pumps used a 10V signal (7092 (old version) and 7093) and current models use 8V. Honestly, I would be surprised if a 7093 still had full function, in general what killed 7093 and 7094 controllers was corrosion of the mechanical switches and they relied on electromechanical relays to switch pumps and after so many clicks, they fuse and fail.