If you're talking about encabulators, it's hard to go wrong with the Rockwell retro-encabulator line. I know newer retro-proto-turbo-encabulators have flashier features, but newer isn't always better when you're dealing with grammeter interfaces.
Like everything else from AB/Rockwell, you can find a better one if you look, buy you can't pay more for one.
I always loved the sound of the doors on the metal cabinet squeaking when opened. Also, that thing that spun around real fast when switched on was extra cool.
I need an app enabled one though, programming it thru the existing PLC interface or worse, manual adjustments is so time consuming.
Talk to your Rockwell rep. If a worse way exists, they'll find it for you.
We just upgraded from the installing a config from paper-tape system, at least now I can use a serial port.