replacement thermometer parts questions

I posted about my broken wireless grill thermometer yesterday. I decided to check on a replacement probe/wire. There is no brand name on my thermometer anywhere so I do not know what brand it is. A quick google search finds identical ones made by different manufacturers see links below to see what I mean.

http://www.amazon.com/Cuisinart-CSG...0&sr=8-34&keywords=wireless+grill+thermometer

http://www.amazon.com/Grillmark-Rem...4&sr=8-20&keywords=wireless+grill+thermometer

Both the same model but by different companies. I bought mine at a local home and garden store. Do the probes need to be matched to the handheld or would a probe from either manufacturer work? If you zoom in you will notice there are slight differences in the probes on each although the handhelds are identical. Sorry for posting links guys.

Thank you!

Well just went to order and they only had one shipping option. Fed Ex for 11.99! Why can't they just ship USPS for 3-4 dollars. Ridiculous for a 4 ounce piece. It may be cheaper just to buy a new thermometer geesh.