Theoretically, I thought it could be done.
I'm told the temp guage I'm looking at has 3 wires, I haven't looked into what they are yet.
Thanks.
Darc

Yes,  You need to a Analog to digital converter, unless you guage already puts out digital signal.

I use a A-D module in a PLC, then bring that value into the macro pump, and convert it, and put it on a dro.

I think John, and some others using Peters board have done it in different ways, see if Peter will answer you.

You can also use a thermo couple module, but you still have to do the above.

Scott