HP48GX with TDS card + a memory card, nylon case included. How does $400 sound?
(gotta figure out how to post an image now) 
Which TDS card? SurveyPro or Cogo?
It sounds kind of high to me, but I'm not a potential buyer, so take this with a grain of salt. I suggest you tell a little more about it, like does it work? Have you tested the calculator and card? Are there any problems like hard to turn off and on, or are all the pixels still fully functional? I'm only saying because if I were going to shell out $400 I would want some assurances that I am buying something that is in good or "very good" condition. And of course which survey card.
OK, I posted too soon, looks like the TDS card and memory card are dead, it all worked a few months ago.
What remains is an HP48GX with a good display and a worn yet still functional "enter" key.
So, dropping the price to $150 and I'll throw in the dead cards. Maybe you can revive them.
If it has been sittin for awhile the circuits may need some new spark.
Low batteries will give some strange action to those collectors.
Check the data card some of the original ones take a large watch battery.
While they are out, take a pencil eraser and clean the contacts and look down the slots and see if anything looks crusted in there.
A couple of shots of dry air blast should clean it out.
Put in some new batteries in the HP48 and give it some time to refresh the cards and the HP48 and they may work fine in a day or so.
good luck
Wow, thanks! Ill try that.
Ain't got the slightest idea what to do with the thing. Never liked TDS. Rather use paper notes and a computer.
