Then search around here on APUG in the emulsion making forum - I think PE and I posted photos of ion specific electrodes that we had made. You can use the same technique to make the ATC probe. Get a length of glass tubing that's long enough to support with your pH electrode and reach the solution, and also big enough in diameter that you can slip the thermistor and wires into the end of it. Thinner glass will give quicker response time but you want it thick enough that it will be rugged enough.
Then use a torch to seal one end of the tube and fire polish the other end. After it's cooled, use a smaller tube to transfer some epoxy into the seal end of the glass tube. Then QUICKLY insert the thermistor and lead wires into the electode housing and set them into the epoxy. Then seal the open end of the glass tubing with some more epoxy.
Fit whatever connectors you need for your meter, and you're all set!